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69camaro5speed
January 2nd, 2011, 05:19 PM
I dont even know where to start looking at the vette forums theres like 200 things to try.99 c5 big cam, headers custom op.5,
I looked up the codes it had befor I tuned it(coped them to note book also ) looks like it had same problems,
Car runs great when its not throwing codes, may go 100 miles with out doing it
Here are the codes on note book, freeze frame,log when it went into reduce power ,log of tps readings with out engine running
my question is there's like 6 or 8 grounds, bcm,tcm or maybe just needs tps relearn

joecar
January 2nd, 2011, 07:18 PM
Look in the Engine DIagnostics section of the tune... some sanity table is being exceeded.

69camaro5speed
January 3rd, 2011, 01:13 PM
I guess your talking c3907? I changed it to this would that be wrong? or is there another change that needs to be made.The idle is 975 I was guessing c3907 needs to be little high for cold start when its comanding higher idle
400 0.000000
800 0.000000
1200 0.000000
1600 1.992188
2000 6.250000
2400 10.507813
2800 14.746094
3200 19.003906
3600 21.992188
4000 25.000000
4400 28.007813
4800 30.000000
5200 31.992188
5600 33.007813
6000 33.007813
6400 33.007813

69camaro5speed
January 4th, 2011, 01:54 PM
helppp lol

joecar
January 4th, 2011, 02:50 PM
When I look up P1221 in E38 context, I don't get any hits in my service manual for this specific context.

69camaro5speed
January 4th, 2011, 04:03 PM
well I was looking at the tps connector on this car some one had cut it off then changed it back (from ls1 to ls2 then back from ls2 to ls1)one pin is very loose a paper clip falls right in the others are tight so I am going to change the end,plus the crimp connectors they used was kind of a mess.

joecar
January 5th, 2011, 10:47 AM
well I was looking at the tps connector on this car some one had cut it off then changed it back (from ls1 to ls2 then back from ls2 to ls1)one pin is very loose a paper clip falls right in the others are tight so I am going to change the end,plus the crimp connectors they used was kind of a mess.Let us know if this fixes it.

69camaro5speed
January 5th, 2011, 12:49 PM
I will

69camaro5speed
January 12th, 2011, 02:15 PM
wow Its never going to quit snowing so I can drive ths thing looks like its going to be many weeks

69camaro5speed
February 13th, 2011, 04:52 PM
new tps connector and 3 1/2 hrs driving no reduce power

69camaro5speed
February 25th, 2011, 07:28 PM
Ok after days of the customer driving his car he said its like a total new car

joecar
February 26th, 2011, 05:48 AM
Good deal :cheers: thanks for updating us.