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V6 Dakotas
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Corey
Dodge Dakota
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7/21/2003
22:55:17
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 Subject: Running Rich
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Message:
hey again, i have a gen 1 dakota w/ a 3.9L that is throttle body injection or toilet bowl injection as i like to call it. thats where is belongs. but n e wayz, my dakota is running rich, very rich, it pours out black smoke which its not suppose to do obvisouly. i have tried a MAP sensor and throttle position sensor. neither have worked. any idea let me know corey
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Jon
Dodge Dakota
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7/21/2003
23:30:21
|  RE: Running Rich
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Message:
A coolant temp sensor or stuck open injector could do it. Does your truck have a cold start injector?? Those stick open occasionally. Any codes or CEL??
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Shank
GenII
7/21/2003
23:39:26
| RE: Running Rich
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Message:
Running that rich sounds like EITHER
1 or more bad injectors getting stuck wide open & flooding a cylinder.
OR Sounds like it is your Idle Air Controller working properly? It's the piece on the back of the TB, with cover off & Engine running, manually "Goose it" & you should notice a change in Air flow. If you cannot hear it, stick your finger right over the little triangle opening while accelerating and release, Checking for a difference in Air flow. Try taking off the TB & cleaning the front of the IAC, WARNING: DO NOT PUSH IN THE PLUNGER! You will see it when your TB is Off & Upside Down. The IAC cost around $25 at Autozone & you'll need a new TB Gasket, It's paper & falls apart as soon as you touch it.
Check your plugs or just give it a good tune-up. Plugs (Autolite 3924's are stock replacement, DO NOT spend the $$$ PLATINUM PLUGS!), Cap, rotor button & Wires
OR....again... What kind of Condition is your Intake Gasket in? Intake Gasket Set is about $39 @ O'Reilly's. This is a god maintenance thing to perform about 75,000. the Kit comes with the Bellypan gasket (Fails frequently sucking oil into your intake) and both intake gaskets. Down time for a rookie about 6hrs for a total cleaning & replacement.
Fuel injectors are expensive! If it comes down to Injectors I recommend Bruce @ fiveomotorsports.com, he did me right.
Good Luck!
Shank
If it don't work hit it with a hammer, Still don't werk? GET A BIGGER HAMMER!
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