Mil: Po105

[Omega]

Manifold absolute pressure/barometric pressure circuit.

WTF does that mean? Does it relate to a bad MAF/MAFT or would it just be the MAP sensor?

 

[Omega]

I have fixed the error by making the lo RPM range VERY rich.

What does the MAP sensor do at idle?

 

[Area1320]

Good old CEL P0105..

I just happen to also get this light after an SAFC and injector install. We only have the high-throttle set up and running good now. Low throttle falls on it's face and doens't run good..i'm guessing once it's tuned to run good on low throttle as well the CEL will go away.

 

[luv2rallye]

Manifold absolute pressure/barometric pressure circuit.

In case you're interested, the '99 Mitsu Eclipse service manual says P0105 is Barometric pressure circuit malfunction only (not also MAP). It is caused by defective Volume air flow sensor, this sensor's loose connector, or the ECU. If you want the troubleshooting page (there's lots of voltage checks on the connector), PM me your email address.