One chipped obd1 p28 ecu. It's chipped with a skunk2 program. Vtec engages a 4800rpm and redline at 9000rpm. It was used on my H22 setup, and will run any OBD1 b16, b18, h22...etc.
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Just to let everybody know. The reason for my P13 reving out at 6200 was because there was a break in the VTEC pressure wire(blue/blk) going to the ECU. The loss of VTEC sends the ECU into a safe-mode.
Still tryin to figure out why I'm running rich...
The one wire goes to A17 (usually pink) and the other is a 12V power source(yell/blk). Just tap a yell/blk wire from one of your injectors. The stock wiring diagram says to tap the VSS(yell/blk) wire. The injector wires are just closer.
VSS=velocity sensor switch
I know I'm running rich because: 1. I have terrible gas mileage. 2. When I hit the accelerator you can see the raw fuel coming out of the exhaust. 3. Drive the car around for about 15 min and the rear end is covered with black sut.
My next guess is O2 sensor..
All that was with a chipped P28...
Ok this is for you honda pros.....I have a 94 JDM H22A in my 97 civic. I had a P28 running it and I was running way rich. I switched to a P72 to see if it made a difference ie..Knock sensor, IAB sensor. It didn't, still running rich.
So now I have a P13 USDM and I'm still running rich, but...