Hi Folks.
Car is MY06 WRX VF34 turbo and sports cat. Mapped to 340/400 My CEL has come on and I have no idea why. Here are some conditions that might give pointers to the issue:
1) Installed gauges 6 days ago and the Intercooler and alternator had to come out to get access to the sensors.
2) On idle the car is not idling smoothly, instead it fluctuates in that every half secnod or so the revs drop then back to 900 then drop then back to 900. At the point of drop the car shudders slighly as thought it is read to cut out. It doesn't do this all the time though. Also, when this happens, both the boost gauge and oil pressure guage drop and climb in time with the rev counter needle.
3) Crap fuel consumption (18 MPG)
The car seems to drive fine albiet off-boost for the moment.
Any ideas, does any one in the GLA area have a diagnostic connection thing that can tell me what the error code is?
Thanks
J
EDIT: Just had a look under the bonnet and there sound like a hissing sound coming from around the alternator region (this is where the sensors for the guages attach), though hard to say. When I turn of the engine, the hissing is more noticable as it dies out.