It is really weird, I have been noticing a drop in gas mileage, loss of power, and this odd problem. when i let off the gas slowly after the rmps are at or past 4,000, the car "surges" before i shift. it does not matter if i let off the gas fast, or slow... it still surges.

I did get 5 cel codes a couple of weeks ago, but i had them cleared, and they have not come back yet. so i was thinking that they were do to me having my alarm installed, and also by me unplugging the gauges.

does anyone have any comments about this? what i am thinking, it may be a MASF, but i am not sure. has this happened to any of you before? thanks

-chris

 

Bump

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I've had this problem before but on my old car. It was the combination of the CAI and the AC being on. When I let off the gas, The rpm ups a little bit than drops normally. I just learned to live with this.

 

blkmax95c,
Can you possibly find out what codes the ecu threw out? I'm very curious. I am having a similar problem with the surge and 5 codes but mine happens at around 1500rpm after I let off the gas pedal. Do you have a high idle with every accessory off and engine running? I'm idling at 1000 rpm compared to a normal range of 650-700.
The codes that I got from the ECU were all TPS(Thottle Position Sensor) related......P0221, P0223, P0507, P1122, P1124. I've already tried replacing the entire throttle body with a used one and I am still having the same problem.....very fustrating and I am at the point of bringing it into the dealer for diagnosing as a last resort.
If you get this resolved on your car please keep me informed as I am stumped right now. Btw, I also have a 2002 Maxima 6-speed. Anyone who thinks they know what the problem could be, please let us know. Thanks.