2GN.ORG

04 Neon SE

I was stopped at red light in drive. As always the RPM dropped to about 500 to 600ish.

Then there was sudden surge and the RPM spiked to I think around 1500. I was holding the brake very lightly so the car surged forward. Fortunately I wasn't close to the car ahead.

I am aware of the idle RPM dropping but this surge was the first.

Anything I need to check? Other than clean the IAC (which I have already done recently)

check for vacuum leaks. Cracked hoses, loose clamps ect.

any specific areas or tubes to check for vac leaks? Is there a diagram of the vacuum tubes?

And where is the MAF sensor located on a second gen?
thx

MAP sensor is located on the right side of the IM in the front.

Basically any tubing coming off the IM should be traced/checked. Some of the earlier TB's have a small rubber cap towards the front of the car. They can dry rot, and crack. The extra vacuum port was eliminated on the newer TB's.