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Old 25 Oct 2008, 11:14 am
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Join Date: Oct 2008
Location: SC
Posts: 2
Default *9 CRX w/ B16 Throttle problem

Hello everyone. I have recently swapped a B16A (JDM) with obd0 (PR3) into an 89 CRX. This is my first swap but I am very mechanically/electrically inclined with exception to the technicality of swaps so here I am.

My problem is this: car will start and idle fine around 800-900 rpm smoothly (after I adjusted idle). However, when throttle is depressed, at approximately 2500 rpm the engine backs off/surges. This occurs while car is motionless. I do not have full exhaust system on it yet (4-1 Header only), so I am curious if the absence of back pressure could be the problem. Being that I do not have full exhaust system I only have 1 of the 2 O2 sensors connected (could this be the problem as well).

This is what I have done so far:
TPS is new.
IAC is new.
Power across the fuel injectors is good.
Rotor button and cap are good and clean.
New plugs gapped at .044.
New wires.
Fuel pressure gauge reads 30 at various idle speeds.

This is pretty much the last thing to figure out aside from fiberglass work and paint (BTW anyone with info on side door panels and side skirt installation would be helpful). Im ready to get this back on the road.

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