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Re: 89 tbi running & starting problem
Quote:
Originally Posted by maynardtruckin
The plugs are black.
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Does the Truck have A.I.R. (Air Injection Reaction) aka a smog pump?
Here is what I would do:
Install clean spark plugs.
Get it started without allowing it to load up.
Watch the sensor data with a scan tool to see what is going on.
If I had no access to a scan tool, I would install clean plugs and run the truck with the O2 sensor unplugged to keep the truck from going into closed loop operation, and see how it ran warm in open loop.
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For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
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