I have been chasing a gremlin for a while now and here is what I have come up with. While monitoring the voltage on my TPS it will go from below 1 volt and as it hits three volts while opening throttle it will blank out and show nothing until i pass this point. I am thinking there should not be a dead spot there and think this would cause the stumble I experience at about 3000rpm. any thoughts would be appreciated.
Stumbles at 3000rpm
- Thread starter frcefedlx
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R.J.
Member
Yes, the motor was off and just a nice gradual sweep of the throttle blade while I watched the voltage rise. It hits 3 volts and then nothing and appears to be intermittent above that. This is the last thing I really looked at so it has to be the problem. I was always leading towards an electrical issue because I could monitor fuel and checked everything else. So I guess a new TPS is in order.
95CobraMike
Active Member
ok this might be dumb.... ive had this a few times before..
my timing was off once
and the other time i had 2 bad spark plugs
but if you have narrowed it to your tps.. dont listen to me
my timing was off once
and the other time i had 2 bad spark plugs
but if you have narrowed it to your tps.. dont listen to me
I have checked the timing and checked it again, all is good. I pulled all plugs and everything seems to check out there as well. they appear to be firing. The only discrepancy is the TPS voltage going dead as it hits 3 volts. I plan to do a good tune up along with the TPS however I will do just the TPS first and see what the results are from just that. I like to give it all new plugs, cap and rotor and check it all out around springtime anyway.
