Quote:
Originally Posted by manchu
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My experience (amateur) is that the car can go into limp mode as
PCM or
TCM decides, but not set a permanent diagnostic trouble code (DTC). The code may be cleared after restarting. In other words, no, your mechanic may not see a code. My car went into limp mode because the
PCM decided there was a turbo system problem. I pulled over and looked at the code which was P2263. I then limped home for 30km, switched off and the code was cleared until next time two months later. This time I knew what to do, ie switch off and on. If I fixed the turbo issue time will tell (replaced turbo vacuum control solenoid). No transmission problems though.
Glitches do happen though. My wife's Mondy has had one EML relating to an oxy sensor which has not yet recurred since 04/15 (marvelous records!)