When I check the fuel pressure a month ago, I found it to be 60psi. So I changed the filter/regulator with a factory filter and this corrected the pressure to 50 psi.
I looked for vac leaks around the intake and throttle body and could not find any. And all the other vac lines are good.
I took the throttle body off and cleaned it about the same time as the filter change. At that time I looked at the idle speed motor. I t was a little dirty so I delicately cleaned it and reassembled the throttle body with a new gasket. I am not sure how I can test the idle speed motor, it is not showing a fault code for it.
The EVAP system lines show no cracks in them, and the scan too I used last time said the EVAP system test passed. I assume the system is OK.
The fuel economy is still 5 mpgs lower than where it usually is.
What temp is the existing sensor reflecting with a value of 32.90 40k ohm scale? How can that sensor be wrong when the air charge sensor is the same part number with almost the same reading?
Tuesday, March 17th, 2009 AT 9:13 PM