3.1 problem rich exhaust!
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 97
Likes: 0
From: Ukraine
Car: Camaro 1988
Engine: 305 14.5s 1/4mile
Transmission: T5
Axle/Gears: 2.73 LSD
3.1 problem rich exhaust!
Help
new oxygen sensor
buy map this http://www.ebay.com/itm/GM-1-Bar-Map...s_Gear&vxp=mtr
I buy pace headers v6!
No check engine!
How to test your problem?
Very black plugs!
sorry my english!
new oxygen sensor
buy map this http://www.ebay.com/itm/GM-1-Bar-Map...s_Gear&vxp=mtr
I buy pace headers v6!
No check engine!
How to test your problem?
Very black plugs!
sorry my english!
Supreme Member
Joined: Jul 2009
Posts: 2,615
Likes: 5
From: PA
Car: 1996 Camaro, 1985 Camaro
Engine: 3.8, 3.4
Transmission: WC T5, 700r4
Axle/Gears: 3.23(?), 3.42
Re: 3.1 problem rich exhaust!
New stock o2 sensor? You may need to get a heated o2 sensor. You need to find out what the o2 is reading.
Supreme Member
Joined: Jan 2011
Posts: 1,732
Likes: 4
Re: 3.1 problem rich exhaust!
Check the grounds, esp. the ecm grounds.
Clean the maf sensor.
Do a fuel pressure & leak down test.
Is the engine running cool? You might have to do a coolant temp sensor resistence test.
Clean the maf sensor.
Do a fuel pressure & leak down test.
Is the engine running cool? You might have to do a coolant temp sensor resistence test.
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Joined: Apr 2006
Posts: 356
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From: Washington
Car: 1985 Sport Coupe
Engine: 3800 Series II Turbo
Transmission: 4th-gen WC T5
Axle/Gears: 3.27 BW Limited
Re: 3.1 problem rich exhaust!
Did this problem occur before the headers were installed, or was it a direct result of that work?
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 97
Likes: 0
From: Ukraine
Car: Camaro 1988
Engine: 305 14.5s 1/4mile
Transmission: T5
Axle/Gears: 2.73 LSD
Member
iTrader: (1)
Joined: Apr 2006
Posts: 356
Likes: 0
From: Washington
Car: 1985 Sport Coupe
Engine: 3800 Series II Turbo
Transmission: 4th-gen WC T5
Axle/Gears: 3.27 BW Limited
Re: 3.1 problem rich exhaust!
He has a MAP car, read his post. 
You have never run the engine without the headers? Where is the O2 located? Is it welded into the headers, or farther down the tailpipe?
You have never run the engine without the headers? Where is the O2 located? Is it welded into the headers, or farther down the tailpipe?
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Thread Starter
Junior Member
Joined: Oct 2010
Posts: 97
Likes: 0
From: Ukraine
Car: Camaro 1988
Engine: 305 14.5s 1/4mile
Transmission: T5
Axle/Gears: 2.73 LSD
Re: 3.1 problem rich exhaust!
My problam cold and hot engine!
O2 no work cold engine!
I SWAP 3.1
where I could connect something wrong
O2 no work cold engine!
I SWAP 3.1
where I could connect something wrong
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 97
Likes: 0
From: Ukraine
Car: Camaro 1988
Engine: 305 14.5s 1/4mile
Transmission: T5
Axle/Gears: 2.73 LSD
Re: 3.1 problem rich exhaust!
I have a manual transmission t5
Engine and ESM with an automatic transmission 700r4 car in!
knock sensor I connected directly to your ESM.
I check ecm grounds oK!
And more
When the engine is hot it stalls.
Engine and ESM with an automatic transmission 700r4 car in!
knock sensor I connected directly to your ESM.
I check ecm grounds oK!
And more
When the engine is hot it stalls.
Supreme Member
Joined: Jul 2009
Posts: 2,615
Likes: 5
From: PA
Car: 1996 Camaro, 1985 Camaro
Engine: 3.8, 3.4
Transmission: WC T5, 700r4
Axle/Gears: 3.23(?), 3.42
Re: 3.1 problem rich exhaust!
Still not clear on whether or not this problem existed before the new headers or not.
If this problem was caused by the header install, then it seems like you need to get a heated o2 sensor.
If this problem was caused by the header install, then it seems like you need to get a heated o2 sensor.
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