Shaney

After suffering from intermittent sluggish performance and testing things like my tps and iacv, I reset my ECU and my car seems to run perfect.

Can someone explain why something as simple as this made my car run better? It used to jerk while putting my foot on the gas and when taking it off and now it doesn't do it.

Ryuu

about anything, anyone can guess... would be, you maybe actually straighten something out during all your testing.. a loose connection.. might be worth rechecking.. however.. run it an see how it goes...

not all too difficult to explain.. prior to whatever fixed whatever.. whatever, wasn't working correctly.. ( i can just see this getting only worse )




I chased a code and wiring an connectors for a few days, all my measurements were fine.. i reset.. no cell codes.. maybe I found whatever it was and made a better connection outta whatever I had.. so.. I, can relate...

Grip Hrd

I personally feel the same way, hence why I had taken the back up fuse off. So it stays reset

JrJanowski

are you resetting the ECU by simply disconnecting the battery?

Shaney

What was your reason for keeping it out?

Shaney

With the key in the off position, I pulled the backup fuse and waited a minute before putting it back in.

twohoos

OP, you're not imagining things. The ECM adapts to recent driving conditions/styles, and the AP1 ECM in particular can sometimes go a little too far in the search for efficiency. A reset puts it in a fairly robust, fuel-rich mode, a new starting point from which to optimize. Early owners who tracked the car used to routinely reset the ECM before the first session of the day...the idea was to help it "forget" the long dull highway drive to the track, and get it ready to optimize itself for hard running.

Shaney

Yeah.. the reset only made my car feel better for a day and now it bogs again after coming to a stop and the idle rpm is random sometimes at 1000 and other times at 600. I don't get it!

djsilverjohnson

Do you have an aftermarket radio? I did an ECM reset today trying to track down a problem and now my radio needs a code to work.