Fast B2b: Map Reading

[6bangr]

I am having on start-up a reading of 30.8k psia. The sensor is diconnected at the factory weatherpac plug. Where else to look? In fast programming or a wiring short in the factory harness? Thanks

 

[HighPSI]

Verify the MAF is unplugged and the connector isn't shorted out. Do the same with the extra MAP plug (Factory and extra one on adaptor harness by ecu). Make sure you have a 3 bar sensor and not a 1 bar. Your post says a FAST B2B but your signature says XFI. If it's an XFI, go to View/System Config/Sensor Calibration/MAP sensor and verify the RAW MAP voltage and the MAP calibration are correct.

 

[6bangr]

Cal, This is in a 87 T-Type with a SII. My sig. describes my GN. I do have a 3 bar and the car ran fine. I just went out to have a look with my laptop and it is at 30.8 and sending the fuel to max before it even is cranked. I have checked the connections again and Sunday I will be unplugging more to see if I can isolate the "fault". I have contemplated the cpu being faulty. Disconnecting the main harness would tell me that???? Or could there be a glitch in the program telling it to do that. But this being a sensor problem or wiring????? I am open for suggestions or any other help. Thanks.....

 

[HighPSI]

If it's an XFI, go to View/System Config/Sensor Calibration/MAP sensor and verify the RAW MAP voltage and the MAP calibration are correct.

ok