That would be the thing to do. A vacuum test, that is. Right now I am going by sound. I guess if there was a vacuum leak I assume I'd hear a big sucking sound. Will follow up on that more diligently
Anyway, I have a friend helping me trying to solve this problem. He's a mechanic and smog certified. We took the MAF
sensor out, cleaned it, reinstalled it and plugged in the scanner.
I did write down some info from the scanner this time. Don't know how it may help.
1) We checked the MAF
voltage at idle. Scanner says it should be between .6 and 1 volt. Reading was 1.17 volts.
2) Checked the TPS
( Keys on Engine Off). Closed throttle was .89 volts and wide open throttle was 4.67 volts. That seemed OK
3) Engine Load at idle should be between 20 and 40 percent. Reading was 18 percent.
4) Not sure about this one reading, but Barrel Sensor was 146 Hz, says it should be 159 Hz. I guess the computer thinks I'm driving 4000 feet above sealevel.
In any case the last thing I want to do is start replacing sensors. Did that with the IAC
and struck out.
Well, that's all I have right now. I appreciate all the input I've received from this forum.