Godfather

Hello everyone,

Lately when I drive my car at a constant speed say 50 mph on a highway the car acts as if it has hick ups. For example yesterday I took the car out on the highway, I drove basically as if I was on cruise control at a set mph and the RPM's would go up and down. It felt as if I was on the accelerator and pressing on the brakes to slow the car down. The car performs this way from 30mph and up.

When I spoke to a mechanic about it he told me it could be my ECU. Could it be my transmission?

Has anyone experience this before?

Thanks in advance.

Bigdot

yup. get a new ecu. might as well get a REnntech or som other one than stock.

mark

Godfather

Thanks for the help, I'm not up to date on ECU's. Is Renntech's a plug and play system that requires tuning or is it a ecu I swap out and use?

Thanks again.

Bigdot

the ECU is a chip thing, yes, all it does it replace your current one, and its about teh same price but u get more power!!

Lincoln

Do you have ASR??? Do you have stock wheels/tire sizes??? Sounds like an ASR problem to me...ASR is controlled by the ECU but also uses other sensors not in the ECU that could be bad/going bad.

Bigdot

i had the same problem as him, it was the ECU

Godfather

I had problems where my ASR light would come on three or four times a day about two years ago. I reset my ecu and haven't had any problems since.

The car still rides on stock wheels/tires sizes.

Godfather

Did you go with the Renntech?

Bigdot

i went with a diffrent company. i cant remember the name, its been some years.

Mark

Godfather

I contacted Renntech and they told me they cannot reprogram my ecu's because of the age.

I was able to locate a stock ecu so I'll post my result soon.