Can't get OH monitor to set ready - Team Camaro Tech
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post #1 of 5 (permalink) Old May 14th, 11, 06:03 PM Thread Starter
Steve
 
Join Date: May 2011
Location: poughkeepsie, ny
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Angry Can't get OH monitor to set ready

2002 Camaro SS 6 spd SLP intake and exhaust upgrades. OBDII codes were reset recently. Now I can't get the OH monitor to set ready. No codes, just doesn't seem to want to run. Need it to get car inspected.

Replaced all 4 O2 sensors (they had almost 100K on them). Checked voltage at cold start with voltmeter. 12+ volts to power, ground is good 4.8 volts to one lead, around 5.3 to the other lead.

I want to fix the problem, not tune it out. Any suggestions?

Thanks in advance,
Steve
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post #2 of 5 (permalink) Old May 15th, 11, 03:58 PM
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Dan Ensign
 
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Re: Can't get OH monitor to set ready

Which monitors are not setting and what was upgraded on the exhaust?

Dan E.
69 SS396 4spd. 4.10 posi. x66 coupe
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post #3 of 5 (permalink) Old May 15th, 11, 04:07 PM Thread Starter
Steve
 
Join Date: May 2011
Location: poughkeepsie, ny
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Re: Can't get OH monitor to set ready

Quote:
Originally Posted by Dan E. View Post
Which monitors are not setting and what was upgraded on the exhaust?

Dan E.
69 SS396 4spd. 4.10 posi. x66 coupe
Right now the OH, Cat and Evap monitors are not setting. However, the evap never does. I haven't driven it far enough to get the Cat one to set (usually requires 60 or 70 miles to set).

The exhaust upgrade was done by Chevy when the car was built. It's the standard SLP exhaust. Everything on the car is stock from GM.
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post #4 of 5 (permalink) Old May 17th, 11, 08:11 PM
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Location: California
Posts: 2,353
Re: Can't get OH monitor to set ready

Dont know what you have tried, but the monitors can be tricky to set sometimes.

Put half a tank of fuel in it (well needs to be between 3/4 and 1/4 of a tank). Park it let it cool down (all the way to ambient temperature) drive 50-70 mph steady, for say 20 miles. Go as fast as you can (safely/legally) then coast down until you are going awkwardly slow, accelerate back to speeds, repeat a few times.
Park the car overnight again and repeat.
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post #5 of 5 (permalink) Old May 18th, 11, 05:05 AM
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BILL
 
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Re: Can't get OH monitor to set ready

Evap will only set in the a.m.
Loosen your gas cap in the a.m. To release the fuel pressure in the tank before you take off and drive and it will be in readiness mode..guaranteed!!

BILL D.
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if you have an all original 1st gen camaro 67-69 click on the link below and enjoy the veiw and post your up!!
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