Question about 2001 Acura 3.2CL

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Fuel problem i have a 2001 acura cl type s and i just changed my ignition coils cause i was having some problems with the front end shaking. now my car is driving ok but i'm still seeing that my gas is still goin down pretty fast. should i change my gas cap? could my egr valve be causing this problem that i'm having?

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  • CrawfordS May 11, 2010

    What are you getting for fuel milage? Also what is the milage on the car.

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I drive that car every day and have been chassing this problem for a long time. Check the ground strap from the battery to the gear box below the battery left side - clean it real well and keep it well tight. While you are it do the same battery ground strap to the body near the battery. Scratch off the paint where the strap seats...

How does you idle sound: smooth and a bit high or jurky and a bit slow? This is caused by the fuel pump surging for its 5Amps due to ground strap above.

I too was getting misfirings from these Coil Over Plugs (COP) so at one point I decided to over drive them under 17VDC. I was getting better spark all right but it was still not perfect the problem was the mixture.
Check that your TPS reads 600mV +/-2mV at idle. I had my throttle body replaced by Acura because the gas pedal what sticky and the replacement was factory misadjusted big time. Take a quick look: the TPS adjustement screws need to be about in the center of the slot. Search under my ID I have made some postings that will help cure driveability issues with our cars.
Like you I was chassing my tail for a while swaping parts (fuel pump, fuel filter, fuel pressure regulator, COP, MAP and O2 sensor...) until I became real familiar with the darn ECM behaviors. THE CLs INJECTION IS REALLY SENSITIVE and quick to detune the engine to keep emissions low.

Posted on Feb 24, 2009

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