h22 in a crx questions
01-08-2005, 11:13 PM
#1
Thread Starter
Join Date: Jan 2005
Location: murfreesboro, tn, usa
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
h22 in a crx questions
this is my first time putting an h22 into a crx and was interested to know if anyone had helpful hints, i.e. what kind of engine bay mods have to be done, where i can get them done, etc.
01-08-2005, 11:26 PM
#2
Honda-Tech Member
Re: h22 in a crx questions (chrisduncan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisduncan »</TD></TR><TR><TD CLASS="quote">this is my first time putting an h22 into a crx </TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisduncan »</TD></TR><TR><TD CLASS="quote"> what kind of engine bay mods have to be done, where i can get them done, etc. </TD></TR></TABLE>
These 2 questions should really not go in the same paragraph. Search for 2point2 and read his thread. It sounds like your not ready for it yet.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisduncan »</TD></TR><TR><TD CLASS="quote"> what kind of engine bay mods have to be done, where i can get them done, etc. </TD></TR></TABLE>
These 2 questions should really not go in the same paragraph. Search for 2point2 and read his thread. It sounds like your not ready for it yet.
01-09-2005, 07:50 PM
#5
Re: h22 in a crx questions (90blackcrx)
ok so i made this a looooooooong time ago so some of it may be a bit off but it should be a good start Fuel filter might need to move to the left or down a little.
You will need a new fuel pump.
You might have to lengthen these plug wires
#1 alternator
#2 oil light sensor {dummy light}
#3 starter solenoid
A resistor pack will be needed get the one with the motor if possible.
The knock sensor will need one wire going from it to the ecu.
You can use a p72 ecu instead of the p13 and you won’t get the egr code. Plus you get better top end and an 8000 redline. There is a bit of lag at 4800 but it is hardly noticeable. I have heard of people running .2 faster in the 1/4.
Take the power steering off before you put motor in
If you cut the header shorter instead of making the cat back shorter a little power will be lost.
You will need stiffer springs. Accord spring rates up front will be good. Might be alittle stiff in back
WIRING
The injection resistor must be removed from the circuit. This is because the OBD0 injectors are not compatible with the OBD1 ECU. In order to do this, the yel/blk wire from the green plug on the injection resistor must be pulled. It will be relocated into an open space in a gray 8 wire plug from the OBD1 harness. This OBD1 plug has 8 yel/blk wires leading out from it and has a gray cap on it. Removal of the cap shows that it has an integrated metal clip that connects all the yel/blk wires together. YOU HAVE TO HAVE THE INJECTOR RESISTOR PACK.
INJECTORS
#1 Match the injector wire colors to each other, as they are the same on both the OBD0 and OBD1 harness. 0BD0 injector plugs must be cut off and the OBD1 injector plugs soldered on.
CUT THE INJECTOR PLUGS FROM THE CAR AND SPLICE THE INJECTOR PLUGS FROM THE H22 CAR HARNESS ON TO WHAT YOU JUST CUT. COLORS ARE SAME.
RESISTOR PACK
You can find resistor boxes on 95 and earlier Preludes and 91 and earlier Civic/CRX/Integras or you can buy a new one It's $74 new from http://www.hondaautomotiveparts.net.
To use a Honda resistor box is simple. The resistor box has 5 wires coming out of it. One is a ground lead, and the others go to the injectors. To wire it up...do the following.
1. Cut all the yellow/black wires off each injector and route them into the injector box. (doesn’t matter what order)
2. Wire the lead on the resistor box into ONE of the yellow/black wires which used to go to your injectors. (doesn’t matter which one) You might want to shrink wrap the parts you cut to make it look clean.
You don’t have to touch the lead injector wires (the red,blue, yellow, and brown wires).
To make your own resistor pack you need to wire a 10watt 10ohm resistor (you can get these from radio shack) inline with each injector. The resistors cost about $1.67 for a pack of 2. They may be hard to find. You can also use 10watt 6ohm resistors. This is why you get the 10 watt resistors... they're rated at 10 watts because that's the amount of heat they can dissipate on their own. Meaning you can flow 1 amp thru them continuously without fear of damaging the resistors. On a fuel injector, they're handling approximately 1 amp. There is two wires going to each injector, one is a yellow/black (ground), and the other is a lead (blue, red, yellow, and brown I believe). What I did was put the resistor inline with each of the yellow/black wire (the wire which is the same color going to each injector). So all you do is cut the ground wire, the yellow/black one, put the resistor inline, little electrical tape, and you’re good to go.
O2
A 4-wire O2 sensor must be added. In order to do this, 3 lines must be added to the harness.
#1 One line runs from the O2 sensor plug to the 8 wire plug mentioned in #1
#2 The second line is a grn/wht line that runs from the O2 sensor plug to any location on the grn/wht wire on the OBD0 harness s wire is yel/blk.
#3 The third line is an org/blk line that leads to the ECU.
#4 The final wire is the white one. This wire serves the same purpose on both the OBD0 and OBD1 cars This white wire is the O2 sensor wire itself…on the OBD0 engine harness, it is a single wire and has a rather large plug on it. This plug must be cut off and the white wire for the OBD1 plug soldered on. IT WILL HAVE NO PLUG JUST WIRES.
DIST. REWIRING
#1 The lines for the distributor’s 7 wire plug can be pulled on both the engine harnesses. Make sure to match the wires coming from the distributor with the matching colors being put into the 7 wire plug. Pull the gray OBD1 7 wire plug for the distributor off the OBD1 engine harness and the replace the 7 wire plug on the OBD0 harness with it. ALL YOU DO IS CUT OFF THE DIST. PLUG FROM THE CAR AND SPLICE THE PLUG FORM THE H22 TO IT. ALL WIRE COLORS MATCH.
#2 As for the 2 wire plug, the plug has to be cut off the OBD0 harness and OBD1 plug spliced on. SAME AS ABOVE COLORS MATCH I THINK.
VTEC
#1 One wire must be added to the harness for the VTEC activation wire. It is a grn/yel one-wire plug on the OBD1 harness. This wire must be run into the car and attached to the ECU from the vtec solenoid. USE THE PLUG FROM THE CAR HARNESS ON THE H22 TO CONNECT THE WIRE FROM THE ECU TO THE SOLENOID.
VTEC OIL PRESSURE SENSOR
#1 A 2 wire plug, one wire black and the other blue/blk. The black wire must be run to a ground and the blue/blk wire runs to the ECU.
SPEEDO
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.
YOU MIGHT HAVE TO LENGTHEN THESE PLUG WIRES.
#1 alternator
#2 oil light sensor {dummy light}
#3 starter solenoid
The reverse light sensor plug on the tyranny will need to be switched out with the one from the h22.
The knock sensor will need one wire going from it to the ecu.
That’s it for the engine harness conversion. You will need to buy or make an obd0 to obd1 conversion harness. You can buy the harness from kenji on Honda-tech.com.
You will need a new fuel pump.
You might have to lengthen these plug wires
#1 alternator
#2 oil light sensor {dummy light}
#3 starter solenoid
A resistor pack will be needed get the one with the motor if possible.
The knock sensor will need one wire going from it to the ecu.
You can use a p72 ecu instead of the p13 and you won’t get the egr code. Plus you get better top end and an 8000 redline. There is a bit of lag at 4800 but it is hardly noticeable. I have heard of people running .2 faster in the 1/4.
Take the power steering off before you put motor in
If you cut the header shorter instead of making the cat back shorter a little power will be lost.
You will need stiffer springs. Accord spring rates up front will be good. Might be alittle stiff in back
WIRING
The injection resistor must be removed from the circuit. This is because the OBD0 injectors are not compatible with the OBD1 ECU. In order to do this, the yel/blk wire from the green plug on the injection resistor must be pulled. It will be relocated into an open space in a gray 8 wire plug from the OBD1 harness. This OBD1 plug has 8 yel/blk wires leading out from it and has a gray cap on it. Removal of the cap shows that it has an integrated metal clip that connects all the yel/blk wires together. YOU HAVE TO HAVE THE INJECTOR RESISTOR PACK.
INJECTORS
#1 Match the injector wire colors to each other, as they are the same on both the OBD0 and OBD1 harness. 0BD0 injector plugs must be cut off and the OBD1 injector plugs soldered on.
CUT THE INJECTOR PLUGS FROM THE CAR AND SPLICE THE INJECTOR PLUGS FROM THE H22 CAR HARNESS ON TO WHAT YOU JUST CUT. COLORS ARE SAME.
RESISTOR PACK
You can find resistor boxes on 95 and earlier Preludes and 91 and earlier Civic/CRX/Integras or you can buy a new one It's $74 new from http://www.hondaautomotiveparts.net.
To use a Honda resistor box is simple. The resistor box has 5 wires coming out of it. One is a ground lead, and the others go to the injectors. To wire it up...do the following.
1. Cut all the yellow/black wires off each injector and route them into the injector box. (doesn’t matter what order)
2. Wire the lead on the resistor box into ONE of the yellow/black wires which used to go to your injectors. (doesn’t matter which one) You might want to shrink wrap the parts you cut to make it look clean.
You don’t have to touch the lead injector wires (the red,blue, yellow, and brown wires).
To make your own resistor pack you need to wire a 10watt 10ohm resistor (you can get these from radio shack) inline with each injector. The resistors cost about $1.67 for a pack of 2. They may be hard to find. You can also use 10watt 6ohm resistors. This is why you get the 10 watt resistors... they're rated at 10 watts because that's the amount of heat they can dissipate on their own. Meaning you can flow 1 amp thru them continuously without fear of damaging the resistors. On a fuel injector, they're handling approximately 1 amp. There is two wires going to each injector, one is a yellow/black (ground), and the other is a lead (blue, red, yellow, and brown I believe). What I did was put the resistor inline with each of the yellow/black wire (the wire which is the same color going to each injector). So all you do is cut the ground wire, the yellow/black one, put the resistor inline, little electrical tape, and you’re good to go.
O2
A 4-wire O2 sensor must be added. In order to do this, 3 lines must be added to the harness.
#1 One line runs from the O2 sensor plug to the 8 wire plug mentioned in #1
#2 The second line is a grn/wht line that runs from the O2 sensor plug to any location on the grn/wht wire on the OBD0 harness s wire is yel/blk.
#3 The third line is an org/blk line that leads to the ECU.
#4 The final wire is the white one. This wire serves the same purpose on both the OBD0 and OBD1 cars This white wire is the O2 sensor wire itself…on the OBD0 engine harness, it is a single wire and has a rather large plug on it. This plug must be cut off and the white wire for the OBD1 plug soldered on. IT WILL HAVE NO PLUG JUST WIRES.
DIST. REWIRING
#1 The lines for the distributor’s 7 wire plug can be pulled on both the engine harnesses. Make sure to match the wires coming from the distributor with the matching colors being put into the 7 wire plug. Pull the gray OBD1 7 wire plug for the distributor off the OBD1 engine harness and the replace the 7 wire plug on the OBD0 harness with it. ALL YOU DO IS CUT OFF THE DIST. PLUG FROM THE CAR AND SPLICE THE PLUG FORM THE H22 TO IT. ALL WIRE COLORS MATCH.
#2 As for the 2 wire plug, the plug has to be cut off the OBD0 harness and OBD1 plug spliced on. SAME AS ABOVE COLORS MATCH I THINK.
VTEC
#1 One wire must be added to the harness for the VTEC activation wire. It is a grn/yel one-wire plug on the OBD1 harness. This wire must be run into the car and attached to the ECU from the vtec solenoid. USE THE PLUG FROM THE CAR HARNESS ON THE H22 TO CONNECT THE WIRE FROM THE ECU TO THE SOLENOID.
VTEC OIL PRESSURE SENSOR
#1 A 2 wire plug, one wire black and the other blue/blk. The black wire must be run to a ground and the blue/blk wire runs to the ECU.
SPEEDO
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.
YOU MIGHT HAVE TO LENGTHEN THESE PLUG WIRES.
#1 alternator
#2 oil light sensor {dummy light}
#3 starter solenoid
The reverse light sensor plug on the tyranny will need to be switched out with the one from the h22.
The knock sensor will need one wire going from it to the ecu.
That’s it for the engine harness conversion. You will need to buy or make an obd0 to obd1 conversion harness. You can buy the harness from kenji on Honda-tech.com.
The following users liked this post:
Trending Topics
01-09-2005, 08:20 PM
#8
Honda-Tech Member
Re: h22 in a crx questions (eflove)
But a new fuel pump will not change the amount a fuel the car is receiving. A stock fuel pump will work just fine. The map sensor will determine how much fuel the engine needs and it will adjust accordingly. And if you would really need more fuel, a fuel pressure regulator and gauge will take care of that.
01-09-2005, 08:44 PM
#9
Re: h22 in a crx questions (90blackcrx)
I see what you are saying but it wont be able to up the f/p if its at the end of its flow. for day to day driving it would be fine but once you get on it the fuel pump wont flow the right amount. Thats why Honda has different fuel pumps for the prelude {h22} and the crx.
01-09-2005, 08:48 PM
#10
Honda-Tech Member
Re: h22 in a crx questions (eflove)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eflove »</TD></TR><TR><TD CLASS="quote">I see what you are saying but it wont be able to up the f/p if its at the end of its flow. for day to day driving it would be fine but once you get on it the fuel pump wont flow the right amount. Thats why Honda has different fuel pumps for the prelude {h22} and the crx.</TD></TR></TABLE>
Yeah but I'm sure a type R, or crv use different fuel pumps to but no one ever has problems with fuel. If your gonna boost then ok a bigger fuel pump is needed but if your staying N/A you will be fine. Fuel pressure is usually set between 30 for 40 on a N/A ( pretty much stock engine ). A crx fuel pump can handle that.
Look out for the shift linkages and the axles, your gonna need custom ones. Also a custom front cross member is needed.
Yeah but I'm sure a type R, or crv use different fuel pumps to but no one ever has problems with fuel. If your gonna boost then ok a bigger fuel pump is needed but if your staying N/A you will be fine. Fuel pressure is usually set between 30 for 40 on a N/A ( pretty much stock engine ). A crx fuel pump can handle that.
Look out for the shift linkages and the axles, your gonna need custom ones. Also a custom front cross member is needed.
01-09-2005, 09:01 PM
#11
Re: h22 in a crx questions (90blackcrx)
but the injectors play a role too h22's have bigher injectors.if it didnt need it i dont think honda would have payed more to make 2 different parts. On the mounts and axels place racing used to make a kit but since has gone under i would try to source some.
01-09-2005, 09:08 PM
#12
Honda-Tech Member
Re: h22 in a crx questions (eflove)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eflove »</TD></TR><TR><TD CLASS="quote">but the injectors play a role too h22's have bigher injectors.if it didnt need it i dont think honda would have payed more to make 2 different parts. On the mounts and axels place racing used to make a kit but since has gone under i would try to source some.</TD></TR></TABLE>
But you were talking about fuel pumps, yes the h22 injectors are bigger but there not that big that a stock crx fuel pump could not handle them.
But you were talking about fuel pumps, yes the h22 injectors are bigger but there not that big that a stock crx fuel pump could not handle them.
01-09-2005, 09:50 PM
#13
Honda-Tech Member
Join Date: May 2003
Location: Portland, Oregon
Posts: 1,865
Likes: 0
Received 0 Likes
on
0 Posts
Re: h22 in a crx questions (eflove)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eflove »</TD></TR><TR><TD CLASS="quote"> SPEEDO
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.</TD></TR></TABLE>
Heh.. never thought about doing that before.. or you could just get the VSS out of a older accord and put it in the h22 tranny..
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.</TD></TR></TABLE>
Heh.. never thought about doing that before.. or you could just get the VSS out of a older accord and put it in the h22 tranny..
01-10-2005, 10:15 AM
#14
Re: h22 in a crx questions (BioXide02)
fule pump isnt that big of a deal. I guess if someone follows up with the swap put it on the dyno and if you need one replace it if you dont then dont. That is a good idea for the speedo
01-10-2005, 10:25 AM
#15
Honda-Tech Member
Join Date: Nov 2003
Location: Kitchener, Ontario, CANADA
Posts: 5,986
Likes: 0
Received 2 Likes
on
2 Posts
Re: h22 in a crx questions (eflove)
your going to have horrible understear..!!! lol.. 
jk.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">SPEEDO
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.
</TD></TR></TABLE>
Nah, just use a VSS from 89? Accord. fits great and runs the speedo like stock.
do a search for my threads.. I dont mind answering specific questions but PLEASE search and read the threads in the EF section.
It's going to be a very fun car to drive if everything is done properly.
jk.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">SPEEDO
The ef speedos were cable driven and the obd1 h22 were electronically driven. You can use the apexi rev/ speed meter.
</TD></TR></TABLE>
Nah, just use a VSS from 89? Accord. fits great and runs the speedo like stock.
do a search for my threads.. I dont mind answering specific questions but PLEASE search and read the threads in the EF section.
It's going to be a very fun car to drive if everything is done properly.
01-10-2005, 09:27 PM
#16
Honda-Tech Member
Join Date: May 2003
Location: Portland, Oregon
Posts: 1,865
Likes: 0
Received 0 Likes
on
0 Posts
Re: h22 in a crx questions (2point2)
Just doo it All you have to do is take your time and it will all come together
- Here is a teaser pic of my h22 power'd rex -
All you have to do is take your time and it will all come together - Here is a teaser pic of my h22 power'd rex -
01-11-2005, 07:59 PM
#20
Honda-Tech Member
Join Date: Nov 2002
Location: GA
Posts: 6,725
Likes: 0
Received 0 Likes
on
0 Posts
Re: (chrisduncan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisduncan »</TD></TR><TR><TD CLASS="quote">ok, i have another question. does anyone want to do the swap for me or know where i can get one swapped in the tennessee area?</TD></TR></TABLE>
time and money, how much you talkin
time and money, how much you talkin
01-11-2005, 08:00 PM
#21
Member
Re: (chrisduncan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisduncan »</TD></TR><TR><TD CLASS="quote">ok, i have another question. does anyone want to do the swap for me or know where i can get one swapped in the tennessee area?</TD></TR></TABLE>
You say you swapped many an engine before and now your asking someone or somewhere to do it???
You say you swapped many an engine before and now your asking someone or somewhere to do it???
01-11-2005, 09:52 PM
#22
Honda-Tech Member
Re: (SkipMic2006)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkipMic2006 »</TD></TR><TR><TD CLASS="quote">does any 1 makes mounts for the h22 yet ?</TD></TR></TABLE>
I know of 2 places, I forgot the name though. Its in 2point2's topic.
I know of 2 places, I forgot the name though. Its in 2point2's topic.
01-12-2005, 06:31 AM
#23
Honda-Tech Member
Join Date: Nov 2003
Location: Kitchener, Ontario, CANADA
Posts: 5,986
Likes: 0
Received 2 Likes
on
2 Posts
Re: (shocker)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shocker »</TD></TR><TR><TD CLASS="quote">such a big *** motor in a lil engine bay,i kinda wanna do that lol but its alot of work
</TD></TR></TABLE>
it's not that big.. i have MORE room for turbo than my friend with hasport copies and a b16a.. but my engine is very far back. you guys would be blow away if i had some good comparison pics. I'm going to take pics of the turbo install so i'll be sure to compare the two with a ruler in the pics.
Bio, that looks stout. but you can use string from fender to fender bolt instead of a level. 
</TD></TR></TABLE>
it's not that big.. i have MORE room for turbo than my friend with hasport copies and a b16a.. but my engine is very far back. you guys would be blow away if i had some good comparison pics. I'm going to take pics of the turbo install so i'll be sure to compare the two with a ruler in the pics.
Bio, that looks stout.
but you can use string from fender to fender bolt instead of a level.
01-12-2005, 06:43 AM
#24
Honda-Tech Member
Re: (2point2)
Dude you just need to go away with your clean 2.2 car! And your yeah I'm going to turbo it also! SHUT UP and drive away quickly!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 »</TD></TR><TR><TD CLASS="quote">. I'm going to take pics of the turbo install so i'll be sure to compare the two with a ruler in the pics.
</TD></TR></TABLE>
I'm only mad and yelling at 2point2 cause I'm jealous!!!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 »</TD></TR><TR><TD CLASS="quote">. I'm going to take pics of the turbo install so i'll be sure to compare the two with a ruler in the pics.
</TD></TR></TABLE>
I'm only mad and yelling at 2point2 cause I'm jealous!!!