I swapped a h22a into my 1993 prelude, but it's only running on 2 cylinders. It's so obvious with a new SS header because cylinders 2 & 4 aren't changing colors & running rough.

Compression is good (210-215 all around), and all cylinders are getting fuel & spark (swapped around injectors & brand new plugs).

There are no error codes. We've tried unplugging sensors to see if it changes anything. Could it be the result of a loose knock sensor?

We are unsure what else to check and what the cause could be. If you have any suggestions, help me please.

 

you firing order is wrong

1-3-4-2 is the correct firing order

#1 is the timing belt side

The #1 spot on the distributor is bottom left. then clockwise if you're looking straight at the dist cap.

 

man i wish that was it. firing order was correct. they are older wires, but all are sparking. should i try brand new wires?

if it's got spark, fuel, & compression, it's gotta be something about the timing of these. i was really thinking #4 & #2 wires were mixed up. it is a H23 external coil distributor with a H22A motor (H23 harness). the ecu (h22) should compensate the ignition timing even if the distributor isn't rotated correctly right?

what else can i try / check / test? thanks!

 

does it misfire?

check your spark plug already?

check if timing is correct?

positively sure ur firing order is correct?

 

are you sure its actually getting fuel?

 

it runs without misfiring, lots of vibrations, almost stalls when slowing to idle from higher RPMs, but not too bad for 1 cylinder lol. i drove it about 5 miles today (under 3k) and got a CEL error 1 (o2 sensor). but now at idle there is no CEL.

http://people.clemson.edu/~ddecola/current.html

it's really only running correctly on 1 cylinder (#3), cylinder #1 hasn't changed the header colors completely yet.


we've checked:

-compression
-fuel pressure (but not fuel volume, maybe?)
-cam timing
-injectors
-plugs
-tw sensor, throttle angle, map sensor
-distributor cap/rotor
-coil

what else can we check, and why aren't the other cylinders doing anything? thanks.

 

if fuel pressure is good, the ecu will take care of volume.

I really think the firing order is still wrong, not as an insult, but are you very sure?

There isn't much else that can make a honda run like that. In what way did you check injectors?

 

Are you sure your rotor isnt 180 degrees out.

 

take your distributor out and match up the line on the distributor and put it back in, sometime people it in wrong and firing order get mess up itself.

if you get a code for o2 sensor get it change.

get a timing gun and check the timing too

definitely have to say it your firing order... or some reason u not getting spark to those to other cylinder.

 

i took off the distributor and found it will only fit one way. the h23 distributor will work with a h22a, right? i have a h22 internal coil distributor but don't know how to wire it with my external coil h23 harness.

also, there is this loud high pitch weeeeeeee sound coming from the left side of the engine. it changes pitches after the car turns off like an intake. there doesn't seem to be any vacuum leaks.

we swapped the injectors from the working cylinders (1&3) to the others and the same results. i might drive it to another shop tuesday.

 

what do you mean it will only fit one way? do you have the line on the distributor end where its supposed to be with cyl #1 at TDC?

 

it was the #2 & #4 INJECTORS! they are clogged but we were able to get #4 firing. so now it's running on 3 cylinders!

the car has been sitting 4 months with the same fuel & old fuel filter too. i'm gonna add some injector cleaner to the fuel tank and fill all the way up with new premium gasoline.

question: what's a good way to clean / flush / test injectors? are the jdm h22a injectors the same as usdm h22 injectors?


oh, and the notches for the distributor / cam are offset to prevent it from being installed 180 degrees out of time.

thanks for the suggestions. 3/4 cylinders is better...

 

You could just send them to RC engineering to clean them, or I'm sure there are other places that can do the same thing.

Glad you got it working!

 

cool. sent the 4 injectors to keith at KGParts for cleaning. one wasn't working at all, but he was able to get it going. put them in and now running much smoother on all cylinders. finally! thanks again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bluedlude &raquo;</TD></TR><TR><TD CLASS="quote">what do you mean it will only fit one way? do you have the line on the distributor end where its supposed to be with cyl #1 at TDC? </TD></TR></TABLE>


the h22/f22/f23 dist only goes on one way. other hondas may be this way but im not sure.

 

it will fit both ways if ur not careful, it doesnt fit right, it will seal but pop out to one side and yes it will run but like s*&t, good like with ur h22

 

you must have pushed really hard to get it on there

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ilandhopr &raquo;</TD></TR><TR><TD CLASS="quote">cool. sent the 4 injectors to keith at KGParts for cleaning. one wasn't working at all, but he was able to get it going. put them in and now running much smoother on all cylinders. finally! thanks again</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedh22lude1 &raquo;</TD></TR><TR><TD CLASS="quote">it will fit both ways if ur not careful, it doesnt fit right, it will seal but pop out to one side and yes it will run but like s*&t, good like with ur h22 </TD></TR></TABLE>

WRONG.

You won't be able to get all 3 of the bolts in with it like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">

WRONG.

You won't be able to get all 3 of the bolts in with it like that.</TD></TR></TABLE>

Matt pwns the average Prelude owner on knowledge of their car, true story.