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What's left to fix?! (or try =D)

Cleaned out the Idle Control Valve and made sure the electrical connector wasn't crudded up. I cleaned up the ICV to the best of my ability and hooked her all back up. It doesn't appear anythign has really changed.

Perhaps injector seals? Seriously, what WOULD cause the engine to stay running rich. I dont know how fuel injectors work or how the comp determines the amount of fuel to be released, but I'm going to guess that the problem is that something is telling the injectors to dump a lot of gas.

Fuel pressure is probably fine, because i just replaced the regulator. Unless the return line is clogged and somehow causing pressure to be excessive at the fuel injector. What do you all think? Or if there was a vacuum leak at the injector, that wouldn't make the engine run rich, would it? Or if the injector was being told to inject a whole bunch of gas. The components that would tell it to do that would be the o2 sensor and maybe the ECT. The ECT is measuring good voltage and the o2 sensor would have to be measuring a lean mixture. In actuality, it's measuring a rich mixture (voltage constant at .7-.8) which should actually lean out the mixture and somehow 'tell the injectors to dump less fuel'. But this is all a hypothesis.

Somebody set me straight here!






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New What's left to fix?! (or try =D)
posted by  dfung  on Sun Jul 3 17:17 CST 2005 >


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