Hey guys,
Friend of mine just installed an H22 in his '91 Prelude. The biggest pain is the integration of the OBD1 computer into the OBD0 car. Right now the intake manifold fills with fuel.
Has anyone here done this conversion or come up against this problem before?
Thanks for your help...

 

bumpity bump...

 

I haven't done the conversion, but if the intake manifold is filling with fuel... You've either got some major leaky injectors... or they're being held open due to faulty wiring... or they're the wrong type for your application (ie. statured vs. peak hold or visa versa).

 

diapram on the fpr is busted or may be leaking injector

 

I had the same problem when i swapped my friend B16 into his CRX... It wasn't filling the manifold but it was filling the cylinder... After awhile it got to where the motor couldn't even crank over... We drain the cylinder through the spark plug hole and it was fine.... When i did the wiring i used a ground from the Tandem Valve since it was no longer needed and it turned out that it was hot causing the injector to stay pinned open...

 

HAHAHA. What he said.
I laugh cause I've done it before. almost blew myself up turning the motor over to force the gas out.

Yeah, a double hot harness caused one injector to stick open. So the cylinder fills, the IM fills....AND the driver in the ECU is probably fried. Mine was.
Check the harness and hot many place 12v is supplied.
Check the ECU on another prelude motor, 3 cylinders might only fire. Check header temp after 10 secs.

And I'm glad it wasn't only me.

Good luck

 

yeah and i was there when you were doing that.....And i was like you stupid ***.......if that car starts we are screwed.....

Pelican you triped me out that day......

Thanks
Ross

 

oh yeah i forgot to mention when we fixed it he started the car and i was looking at the cams and he forgot to put the cam bolt back on one of the cam gears and it was running for like 20 min......hahhahaahahhahhaha

Thats what killed me the most....That was a funny night...

Thanks
Ross

 

one of the injectors is probably frozen, just unplug all injectors and pull them out of the flange of the manifold but leave them in the fule rail tighly. Then just prime the fuel system and see if any leak , make sure you un plug your distr. so it wont start. Then you can see freely whats going on , but make sure the injectors dont come flying out of the rail. Have fun