Question about 1998 Saturn SL
Could be a vacuum leak that is only apparent when the car is up to temperature. Or a sensor (O2, MAP/MAF etc.) that is only used after the engine control system goes into closed loop mode. Or a defective temperature sensor that makes the ECU believe the engine is still cold, and so supplies the wrong air/fuel ratio.
Posted on Nov 26, 2014
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Posted on Jan 02, 2017
be sure the cig lighter is working, if it does not work the scanner will not work and be sure the C.E.L. works. if not check the bulb
Posted on Apr 06, 2009
SOURCE: 2000 lincoln ls cracked head???
Previous to 2000 Ford had a cylinder head gasket problem with some of the v6 engines failing at two cylinders at opposite corners of engine (don't know what engineyou have) They supposedly corrected that, but I'm not sure how well the correction worked. I doubt if the cylinder head is cracked but if some amount of compression is getting into cooling system it's possible that it may give you strange sensor readings. When testing, it's also possible that some air escaped and returned everything to "normal" ('till it builds up again).
At this point, I would get a second opinion on this. As well as a comprehensive computer scan, have someone do a radiator hydrocarbon test...that will reveal any compression in cooling system from gasket or any other source. (Don't mention that it was checked before, just say what originally happened so objective testing will be done.)
Posted on Apr 22, 2009
SOURCE: PCM code P0404
P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance
I suspect the EGR got stuck closed, u will need to put around 30 miles on the car before the light will return if the problem is still present..
Posted on May 26, 2009
dear friend-filling the tank has nothing to do with the engine light.in order to cancel this light,disconnect the battery and leave for a while.reconnect battery and check light,it should be of,if the same happen again take vehicle to a dealership for a diagnostic report.
Posted on Jul 29, 2009
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