To clarify the mods on my car: the engine is completely stock except for an intake.

A bit of background: about a year ago, I was driving and I floored it and the car went into limp mode. It was a MAF code. I cleaned it, but the problem persisted; if I put my foot down too hard the car went into limp mode.

Here's the weird part with this problem: when I got the code cleared, the car seemed to be normal, but it had an 'unintended acceleration' problem. The car would just rev itself up without any input from me. Because it's a manual, I could just put the clutch in, but it was still alarming. When I unhooked the battery to reset the computer, the car acted normal.

I've been meaning to replace the MAF, but since the car only went into limp mode if I drove it hard, I've just been driving it normally with no problems in many months.

Now, onto my current problem. Yesterday I took my car to the dealership for an oil change (I get a discount because I got the car there). I theorize that whatever stupid kid tech got to drive my car, he thought he was going to have some fun and drive it with a heavy foot. It went into limp mode, he cleared the codes, and they just gave it back to me without mentioning anything about it.

When I went to pick up the car, I left the dealership with no problems, no CEL initially. But after driving for about five minutes, I noticed the car was acting extremely erratically. When I went to shift gears, the revs would stay where they were before I took it out of gear. I could be stopped and the car would be revving at 3,000 RPM.

After driving like that for a few minutes, a CEL appeared. I went to get it scanned yesterday, but for some reason the scanners couldn't connect to my car (I went to Autozone and Advance Auto Parts).

I disconnected the battery, and after reconnecting it, the problem persisted and the CEL reappeared. So I can't use the same temporary fix I have been before.

I made it to work this morning with no problem, but coming home today, the car was holding its revs again immediately, then after about four minutes it began revving erratically, then went into limp mode.

I went to get the codes scanned, and this time it worked. Unfortunately, there are way more codes than the MAF. The past year, I've been thinking it just needed a new MAF. Now, I don't know what the heck is wrong with it.

Here are the codes I'm getting:

P1182
-Supercharger inlet pressure (SCIP) sensor
-The ECM has detected that the actual measured air pressure from the SCIP sensor does not match the expected range
-Probable cause:
-Open or short circuit condition
-Poor electrical connection
-Failed SCIP sensor

P1101
-Intake Air flow system performance
-The ECM detected that the actual Air flow as measured from the MAF, SCIP and IP did not match the expect range for more than 0.5 seconds
-Probable cause:
-Failed ignition switch
-Faulty MAP sensor
-Shorted computer input sensor
-Incorrect input from the ECT or IAT sensor
-ECM fault

P0121
-TP (Throttle Position) sensor
-The Throttle Position signal is used for various systems in the vehicle
-Sensor open or shorted internally-replace component
-Check connector and wiring to sensor

P0069
-Supercharger inlet pressure (SCIP) - barometric pressure (BARO) correlation
-The ECM has detected, with the ignition key on and engine off, the calculated difference between the BARO and SCIP is greater or less than expected
-Probable cause:
-Poor electrical connection
-open or short circuit condition
-Failed BARO sensor
-Failed SCIP sensor

P0068
-Throttle position and engine load do not agree
-The ECM has detected that the TPS value and engine load do not agree with the expected TPS value and engine load
-Probable cause:
-Check engine for vacuum leak
-Check engine condition- mechanical condition, plugged exhaust or intake
-Transmission condition


I'm counting on you guys here! My car suffered some cosmetic damage in an accident just a few days ago, and the insurance company has yet to evaluate the damage. With a couple thousand in body work, and a screwed up engine, my car is probably worth about -$1.

 

start checking wires from the sensor to the pcm

 

Clean SCIP, clean TB.

I had hanging revs when I accidentally switched the plugs for the SCIP and BARO, but that doesn't look like the case here.

I know P0068 sets limp, maybe P0121 does too.

 

I'm pretty sure that your maf is about to fully **** out.