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- Honda CRX / EF Civic (1988 - 1991) (https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/)

- - DOHC ZC code 1 (https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/dohc-zc-code-1-a-2601895/)

RyanJayx

Jul 5, 2009 06:09 PM

DOHC ZC code 1

My CEL comes on after about 3 minutes of driving and when it does, my car loses power. I have to turn the key off and then back on to reset it, and then it will go another 3 minutes before doing it again. The ECU is flashing a code 1 for 02 sensor. The only think I can think of is that I am running a PG7 instead of a PM7. Any ideas??

beana

Jul 5, 2009 07:06 PM

Re: DOHC ZC code 1

Quote:

Originally Posted by RyanJayx (Post 39142110)

code 1 is oxygen content, which is the o2 sensor, make sure it's plugged in, if it is change it

RyanJayx

Jul 5, 2009 09:46 PM

Re: DOHC ZC code 1

I have changed it, twice and it didn't affect it at all. Could it be a vacuum problem?

~sp33~

Jul 6, 2009 01:10 AM

Re: DOHC ZC code 1

Quote:

Originally Posted by RyanJayx (Post 39144408)

I have changed it, twice and it didn't affect it at all. Could it be a vacuum problem?

Yes. If your engine is running rich your O2 sensor will throw a code 1.

Check your vac lines to your map sensor.

northemt88

Jul 6, 2009 09:21 AM

Re: DOHC ZC code 1

i thought you don't need your o2?im not running one and not a problem every now and then i get the cell.its a stock ecu

~sp33~

Jul 6, 2009 09:44 AM

Re: DOHC ZC code 1

Quote:

Originally Posted by northemt88 (Post 39148149)

i thought you don't need your o2?im not running one and not a problem every now and then i get the cell.its a stock ecu

Honda just put it in there for fun.

northemt88

Jul 6, 2009 01:42 PM

Re: DOHC ZC code 1

Quote:

Originally Posted by ~sp33~ (Post 39148429)

Honda just put it in there for fun.

lol

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