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    Help with P1633 Keep Alive Memory Code

    It was a PCM problem! I got another one had it programmed and it now runs like a raped ape again! There was damage to the main chip in it! Thanks for your help!
  2. G

    Help with P1633 Keep Alive Memory Code

    Thanks for all of your help. I will probably take it in this week. I am going to inspect all the wiring one more time and hope....really hope....that I overlooked something. I don't think so as I have looked and re-looked many times. I'll let you know what the end result is! Thanks...
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    Help with P1633 Keep Alive Memory Code

    There is a sound system different receiver with pigtail adapter to match factory and amp w/subs in the trunk on seperate, independently wired fuse system. It is an automatic. Nothing unusuall that I can think of. It has never been wrecked (I bought it new). The only thing that I can...
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    Help with P1633 Keep Alive Memory Code

    Sorry I have not responded. I have been out of town for a month. I did replace the alternator and battery and am getting 14.86 volts. I did disconnect everything and the fuse still blew but it only blows when I put it in drive. I could drive in reverse all day long and it will not blow...
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    Help with P1633 Keep Alive Memory Code

    I unhooked everything. The #8 fuse still blew. I unhooked the front O2 heaters. The fuse blew. When I put it in reverse...I can floor it and go backwards for as long as I want and the fuse will not blow. As soon as I shift into any drive gear and push on gas pedal....POOF....it blows...
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    Help with P1633 Keep Alive Memory Code

    One other footnote...I had unhooked them one at time while it was on jackstands and let it idle forever. The fuse did not blow so I figured it had to have been a bad O2 Heater. That is why I replaced them all. It was after I put the new ones in that I discovered the #8 fuse was blowing when I...
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    Help with P1633 Keep Alive Memory Code

    I checked all the wiring....can't find anything that looks burnt, crushed or damaged. I replaced all the O2 sensors with new OE ones. I can put the car in park and let it idle all day long...rev the engine etc... and the fuse does not below. As soon as I put the car in gear and push on the...
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    Help with P1633 Keep Alive Memory Code

    Thanks Thanks for the advice. I'll go through everything again this weekend and if I cant find a short; I'll start disconnecting the O2 Sensors one at a time. No long headers...short headers. Battery is spotless, terminals always maintained, no loose cables anywhere. Car always starts...
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    Help with P1633 Keep Alive Memory Code

    I have a 99 GT that gives a P1633 code (Manufacturer controlled Computer and auxillary outputs) is what the OBD II reader shows. I also get a P1451 (manufacturer controlled auxiallary emission controls) I am also having the #8(Engine Controls) fuse blow on a consistent basis that leads to other...
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    PI Headswap Write-Up

    PI Head Swap P0340 error I have a 99 Mustang GT that I swapped the heads on to the PI heads that I bought from Steeda. They are the 2003 GT heads. Along with them I also changed the intake manifold that I bought through them to match the heads. I put the COMP Cams Ford 4.6/5.4L Adjustable...
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