will a car run without the knock hooked up? or will it stay in limp mode?

the car is only throwing two codes 21. 22. they both involve vtec so that cant be why the car isnt running. could it be the timing? the car doesnt have a set idle, and when i give it gas it boggs out and dies. any help??

Modified by xJDMCx at 2:22 PM 9/11/2006


Modified by xJDMCx at 2:37 PM 9/11/2006

 

Why don't you go ahead and give us more information about the chassis, ECU and motor before you start asking broad-sweeping questions like that? GM cars can run without their knock sensors hooked up, but I'm not sure what you drive, so I don't know if that helps.

 

94 cx hb.jdm d15b. cx harness, p08 ecu, vtec not wired, o2 not wired

car jumps rpms from 500 to like 1200.. you have tou feather the clutch and the gas around 1500 rpm to get it moving.. even then the car will eventually die. any help?

 

I don't think P08s detect knock.

 

94 cx hb.jdm d15b. cx harness, p08 ecu, vtec not wired, o2 not wired

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xJDMCx &raquo;</TD></TR><TR><TD CLASS="quote">94 cx hb.jdm d15b. cx harness, p08 ecu, vtec not wired, o2 not wired</TD></TR></TABLE>

...your oxygen sensor isn't wired up and you're concerned about a knock sensor? What codes is your ECU throwing and what makes you think the symptoms you're describing are due to a knock sensor?

Seems like you have no idea about what you're speaking.

 

actually i dont. thats why i came to honda tech for help.. i know it came run without vtec and the o2. so i wanted to know about the knock. lighten up and help me out or leave this thread man.. my car is not running and i need help

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xJDMCx &raquo;</TD></TR><TR><TD CLASS="quote">actually i dont. thats why i came to honda tech for help.. i know it came run without vtec and the o2. so i wanted to know about the knock. lighten up and help me out or leave this thread man.. my car is not running and i need help</TD></TR></TABLE>

Take it to a mechanic, friend.

1.) your car cannot run without an oxygen sensor - or at least it can't run worth a ****. It's four wires, son. Make it happen.

2.) VTEC is not needed.

3.) you're obvioulsy not mechanically inclined enough to be doing this, so take it to a mechanic or a local Honda-Tech guru and have them fix it for you for a case of beer and a pizza.

 

Your car will not run in limp mode. On my old B16 my knock sensor kept coming loose and it made no difference in how the car drove, just threw a CEL.

 

is there a diagram on how to wire the four wire o2?? i was told it can run w/o it.. i guess they were wrong.

 

I did a search and the P08 doesn't detect knock. I don't think any SOHC ECU did...

 

thanks man.. so knock is out of the question. must be the o2 right?? any help on wiring it up? i need my car running by tommorow

 

92-95 po8 dont detect the knock sensor. also go to the tec side of honda tech and do a search. youll be suprised.

 

to hook up the o2 sensor is really easy all you have to do is jack up the car find the 4 wires that hook up to the o2 senosor and hook them up to the the o2 sensor then plus the o2 sensor into your exhaust manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eeleaj &raquo;</TD></TR><TR><TD CLASS="quote">to hook up the o2 sensor is really easy all you have to do is jack up the car find the 4 wires that hook up to the o2 senosor and hook them up to the the o2 sensor then plus the o2 sensor into your exhaust manifold. </TD></TR></TABLE>

uh...no. He has a CX harness which is a 1 wire O2 sensor. So its not exactly plug and play.

I have no idea how to do it . Good luck

 

the car is only throwing two codes 21. 22. they both involve vetc so that cant be why the car isnt running. could it be the timing? the car doesnt have a set idle, and when i give it gas it boggs out and dies ??

 

bumps

 

anyone can answer my question? i have nearly the same problem... i just swaped my engine. It is now a zc sohc vtec. with P08 ecu... my just wondering if what is the original ecu of zc sohc vtec? is it P28 or P08?

here is my big problem... the car is running good, but sometimes my check engine warning light at the gauge will light, so i will turn off the engine then turn it on again to get rid off the light and my speed sensor always going up and down even im not running but the engine is turned on....

what do you think is the problem?

i checked my ecu codes... my first check is # 17 ( speed sensor) and # 21 (vtec solenoid) so i tried to removed all the sensors in the engine and put it back, then i checked again the ecu code - # 20 electrical load detector. i found out that from the ecu the slot of the load detector was no wire....

what is wrong with my engine and ecu?

thanks for anyone who can help me...

 

your car can run without o2 sensor but it will be hard to keep proper air/fuel mixture, and knock sensor basically read knocks or detonations in the engine (dont really needed-but vtec wont work w/o it)

 

are you sure with out knock sensor vtec is not working? what will i do?
is it not dangerous?

 

how about my speedometer? it keeps on reading even im in stop mode (w/ engine on)? it only happened when i swaped my engine? with my old engine it works normal with my new zc sohc vtec it keeps bothering me.

 

what will i do? pls help me. im a solid JDM man...

sometimes my check engine lights up even in my normal driving... that's a problem right? i checked my ecu code it gives me # 20 (knock sensor) found out that my knock sensor has no wiring. is it normal with sohc engines? how to wire it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bonehead821 &raquo;</TD></TR><TR><TD CLASS="quote">how about my speedometer? it keeps on reading even im in stop mode (w/ engine on)? it only happened when i swaped my engine? with my old engine it works normal with my new zc sohc vtec it keeps bothering me.</TD></TR></TABLE>

it could be the sensor wires or gauge cluster..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bonehead821 &raquo;</TD></TR><TR><TD CLASS="quote">what will i do? pls help me. im a solid JDM man... </TD></TR></TABLE>

lol what exactly does that mean???