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Help with anomaly

  • Thread starter Thread starter 94tang
  • Start date Start date Aug 29, 2019

94tang

20+ Year Stangneter
Aug 24, 2003
297
4
19
East TN
Aug 29, 2019
#1
  • Aug 29, 2019
  • #1
Been having an issue lately and dont know if its tune related or an electrical gremlin. Usually happens with steady light throttle input. The car hesitates for a split second as im cruising along. So far it hasn't happened at WOT. If my picture loads it will be marked with white arrows.
 

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a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Aug 29, 2019
#2
  • Aug 29, 2019
  • #2
ok your issue may be a few things, the RPM signal into the ecu [from the pip] shows 15000 rpm for a split second this is your hiccup. I do not see the other sensors freaking out so we can rule out an issue at the ecu.
 
Reactions: 94tang

94tang

20+ Year Stangneter
Aug 24, 2003
297
4
19
East TN
Aug 29, 2019
#3
  • Aug 29, 2019
  • #3
So what would cause the false rpm signal?...bad pip?...bad distributor?....bad tfi module?
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Aug 29, 2019
#4
  • Aug 29, 2019
  • #4
well you are not currently data-logging the status bits so i cant see status #2 for sync loss. when this happens do you get an upcount on the sync loss gauge in TS?
 

94tang

20+ Year Stangneter
Aug 24, 2003
297
4
19
East TN
Aug 29, 2019
#5
  • Aug 29, 2019
  • #5
Honestly dont know Steve. Ill turn that on and get another dl
 

94tang

20+ Year Stangneter
Aug 24, 2003
297
4
19
East TN
Aug 29, 2019
#6
  • Aug 29, 2019
  • #6
Well i got another datalog, but the car didnt act up this time. It usually does at least once or twice while im driving. The above datalog doesnt show it, but i think it actually did it 3 times total.
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Aug 29, 2019
#7
  • Aug 29, 2019
  • #7
I would suspect the pip sensor first.
 
Reactions: 94tang

94tang

20+ Year Stangneter
Aug 24, 2003
297
4
19
East TN
Aug 29, 2019
#8
  • Aug 29, 2019
  • #8
Thanks Steve
 
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