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Showing results for tags 'pcm'.
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Got my new Shelby ...(well new to me)...two weeks ago and got to drive the 20kms home.....was still smiling the next day. Went for a Sunday drive and ended up stranded on the side of the road. "Check Charging System" light came on then battery light ...then 10mins down the road all went down hill pretty fast and died completely...after reading any forum I can find seems pretty common so purchased brand new battery...new 200amp PA Alternator...installed all parts and worked great.(showed 14.6Volts...dropped to 13.5v constant after 90secs.. and putting out 90amps at idle...up to 130amp at 2500rpm). After turning off car and restarting after 3 mins...voltage reads 12.3v and drops 0.4v after 2mins and ammeter show 0amps...so alternator is not getting signal from pcm to turn on !!...however after turning it off and disconnecting the negative battery cable for 10mins...then reconnecting it and restarting...all is well again.(voltage lifts to 14.6v and drops back to steady 13.5 volts..Until you turn off car. Only way to get alternator running each time is to disconnect the battery terminal for 5-10mins...(which I assume is clearing the PCM memory)..makes for a very long trip every drive. Have take to a Auto electrician and he says there is a fault code P0****..something about a field generator..I just can't remember what he said....I have ordered a PCM code reader...(I'll update when I get the exact code) I'm over in Perth Australia....so no dealer here has any clue ??? Thanks in advance.
On this forum, I've heard guys warn about taking your KR in to Ford, that a mechanic may reflash your PCM. I've also heard some say not to worry about that because the mechanics know not to do that to a KR. Well!! While taking my KR into Ford to have them look at my clutch for a possible TSB replacement, they decided that the clutch was alright and it didn't meet the criteria for a TSB replacement. "BUT, we reflashed your PCM!!! YIKES!!! I nearly passed out. In the end, the manager of service at this SVT dealership said that she could not get the KR tune. That they would have to take the PCM out and send it to FRPP. I called FRPP and after paying $150, they sent me the tune for my KR. I slid the flash card into the ProCal II tuner and my original KR tune is back in. On a side note, these tunes from FRPP are not Vin specific, they are year specific. Rule #1 If you take the KR in cover and put a big sign on the PCM port. Do Not Re-Flash!! This is a KR... Rule #2 If you have a TVS installed, you most likely have a TVS FRPP tune or an aftermarket tune. Return your car to stock before taking it in. Then you won't have to send your tuner back in to have it unlocked. That is typically a $150 charge, but if Ford reflashes your PCM, SCT will unlock the tuner for $75. Rule #3 - Don't forget rule #1