I have a 1997 Saturn SL1, 1.9L SOHC. I am reading a code of P0107 Map sensor voltage low. Occasionally I will get a random misfire on cyl # 2 only( Code 0302). The issue is, I've replaced the MAP sensor, TPS sensor, EGR Valve, IAC valve, PCV valve. Checked the voltage on the MAP sensor (5 volts) and checked spark on each cylinder, and did the noid light check on #2 injector to make sure that the injector was getting signal. Anyways main issue is the Map sensor code. Idles erratically. But on highway speed (above 2250 rpms) the car runs decent with the occassional jerk while in the throttle. Vacum leaks, elctronics, W/E the F*, Please help! This issue is killing me. I have some mechanical knowledge anything would help. Thanks.
have the same problem?
Wednesday, July 14th, 2010 AT 12:43 PM