b18 swap into 90 crx hf running rich with code 43

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Jun 11, 2002 | 03:33 PM

90TegRex

Thread Starter

Joined: May 2002

Posts: 46

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From: WA, USA

b18 swap into 90 crx hf running rich with code 43

I also posted this on the hybrid forum, so please forgive me if you have seen it there....

I seem to be having some problems with my b18 swap. It's running, but it seems to be running rich and it's throwing a code 43 on me. I have checked the wiring to the o2 sensor and also replaced the o2 sensor. Does anyone have any suggestions?

Thanks for the comments

Jun 11, 2002 | 05:06 PM

Jared

Honda-Tech Member

Joined: May 2001

Posts: 7,190

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From: Tallahassee, FL, US

Re: b18 swap into 90 crx hf running rich with code 43 (davija)

Check your fuel pressure.

Jun 11, 2002 | 07:53 PM

flat-blk-HB

Joined: Mar 2002

Posts: 2,431

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From: JaCkSoNvIlLe, TX, USA

Re: b18 swap into 90 crx hf running rich with code 43 (Jared)

I too have this problem with my 89 DX with a b18...I got a air/fuel gauge and it is running a lil rich sometimes and when I am at constant speed (highway for example) it will sometimes come on but I have heard of so many people with this problem and i just reset my ECU now. I have gotton use to it. I replaced my fuel filter and it didnt do it for a while but then it popped up agian like 1 time every 2-3 weeks so I dont even worry about. Try gettin a fuel pressure reg and mess withthe fuel pressure.