[CSG Mike]

Originally Posted by axelthrasher

For those that may have the RPM stumble...

My car is bone stock except for the JR SC kit, using the JR tune on 93 octane. I get periods of the powerband where it feels off or it is just missing...

I have had the P0172 (System Too Rich Bank 1) and P1170 (Port Injector Fuel Performance) twice in a month. Car was sluggish, felt like it retarded all timing and threw a lot of fuel at it. Cleared the codes, went back to normal.

Talked to Jackson Racing a while back about this issue - they said clean MAF and try to keep the harness extension away from the alternator, that it can cause interference. Did both.

Yesterday was cruising on the highway at about 65-75. Car started feeling strange again... this time I pulled of the road, shut it off. Started the car back up, and it died right away. Popped hood, made sure all throttle body connections, ecu connections, and maf connections were snug. Also ensure battery (positive and negative) were tight, no issues on anything. Started the car again, same thing. Started again, revved it (2-3k) to keep it running and it would stay running, then back to idle it died out. Did this 2-3 times. Let it sit for 5-10 mins and then it started and acted normal.

Now, for the CEL I received during this start/idle issue. P0102 (Mass or Volume Air Flow Circuit Low Input) and P0113 (Intake Air Temperature Circuit High Input).

Anyone experience this before? Any idea on what is actually going on with it?

Something is wonky in the connection from your MAF to your ECU. Both of those indicate that something is disconnected; those are codes thrown when there is *no* reading.