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Old 23rd September 2012, 08:03 PM
adjuster adjuster is offline
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Join Date: Mar 2012
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Update: Have had the In Line Walbro, 255lph pump on the car for the better part of a week now, and it's running great around town.

1) The low speed engine performance is better. It used to "hesitate" and "ping" when I got on the gas off the line, not it does not do this at all, and the engine sounds, and pulls much stronger than it did before.

2) I can drive at highway speeds without the flashing CEL light, but ONLY if I don't use the cruise control? This has me confused, as clearly the engine is getting enough fuel from this setup, it's running great, but I have not cleared the codes yet, and wonder if that's resulting in the random misfire CEL flashing? (Or if that's what's making it flash, it does still drop injectors, so I'm guessing it is.)

So, crazy thing is I have plenty of fuel at the injectors/rail, but the engine ECU still sees a problem.

Any ideas?

I've been wondering if swapping out to another ECU would be possible. I know that the unit has to be coded to this vehicle, so it's not as easy as just unplugging one, and plugging in another.

But beyond that, I can't figure this out.

Plenty of fuel.
Injectors cleaned.
New fuel filter.

Still get the random misfire when the cruise control is used, and my fuel economy goes from about 20mpg to 16mpg as the engine runs like crap at 83mph.... But if I feather the gas, and slowing speed up, and down every few seconds, the CEL never flashes, and I can go as fast as I want....

ARGH! Love this car, but this fault issue is driving me nuts.
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