Helmet86

The problem with my car is that I have trouble keeping my car to idle right but after a few tries of trying to start it without my MAF sensor, the car runs very good. Then when I turn it off, I run into the same problem. I have driven my car with the MAF sensor connected and the car runs horrible. It backfires, does not respond well when I hit the gas and even if I floor the peddle, the car does hardly moves.

mattdel

what have you done before hand? did it used to run? did you buy it like this?

SteveSkal

Your still a little confused. Sure all MAF's have a tube within the meter where the actual sensor is housed but Pro-M meters do not have a removable sampling tube like a C&L meter, Pro-M calibrates their meters by the programming in the electronics housed on top of the meter. C&L on the otherhand uses the different size sampling tubes to "fool" the stock electronics into correctly calibrating the car for different size injectors. So again, disregard the comment about the sampling tube. However do be sure you're Pro-M meter is calibrated for the 24# injectors, they usually inscribe that on top of the electronics, if not you can call them with the SN and they can tell you what that meter is prgrammed for

Helmet86

Actually yes, the car did not run like a 5.0 but it seemed as if the car got worst over time. A friend of mine disconnected the MAF and the car ran like an animal for a week or so. Thats when I had the trouble of keeping it on. Now I have to play with the MAF sensorby turning the car on and off with and without the sensor until it finally catches on and stays on. But when I finally have the car running, the MAF sensor is disconnected.

mattdel

still got stock cats?

Helmet86

No i have the H- pipe flowmasters..

Helmet86

I also heard that PRO-M Racing no longer exist.

SteveSkal

The original Pro-M company is gone but a bunch of the guys from Pro-M went and started up another company, so essentially it's the same company and same product.

Helmet86

So do yall think that if i lower my thottle body from a 75mm to a 70 or 65mm, will solve my problem?

mattdel

doubt it. you need to get a volt meter and start carefully watching your MAF readings, see what its doing. also check the 5v reference signal, its tied into the IAC 5v.