| From | Message |
Chris
Dodge Dakota
JOIN HERE
3/18/2002
03:39:39
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 Subject: Help! Truck Stinks And is running lean
IP: Logged
Message:
I just installed autometers A/F ratio gauge on my 98 3.9L auto and it shows that it runs really lean. it does not show up stoich until I step on it and stay at 50mph+ alot of times it has a real bad rotten egg smell. i had the cat replaced not too long ago cause it feel apart and sounded like a toro snow blower. is there a way to change the a/f ratio? i ordred the iat adjuster and have not got it yet and i am going to order a new upstream o2 sensor today. is this the prob and will it fix it. my truck has 57,000miles and i was told to replace the o2sensors at 60,000miles. any suggestions or info will help. Chris
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bernd
*GenIII*
3/18/2002
09:09:42
|  RE: Help! Truck Stinks And is running lean
IP: Logged
Message:
If you connected the A/F meter to the PCM harness (output from the factory O2 sensor), it's actually running rich (rotten egg smell). The O2's respond backwards on the PCM lead:
Not enough oxygen (rich) = Lean signal
Too much oxygen (lean) = Rich signal
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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Chris
Dodge Dakota
JOIN HERE
3/18/2002
12:15:33
| RE: Help! Truck Stinks And is running lean
IP: Logged
Message:
so how do i fix this problem? where should i hook it up at?
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bernd
*GenIII*
3/18/2002
12:42:03
| RE: Help! Truck Stinks And is running lean
IP: Logged
Message:
Grab a single-wire O2 sensor (old style GM) and have an O2 bung welded into the end of the Y-Pipe before the catalytic converter. Use the seperate O2 as it will read what's going through your exhaust. (Much more accurate than tapping off of the factory O2 signal lead.)
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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Chris
Dodge Dakota
JOIN HERE
3/18/2002
13:23:30
| RE: Help! Truck Stinks And is running lean
IP: Logged
Message:
how do i fix the rotten egg smell?
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