Engin89
Member
New problem with the truck.
First, I noticed the tach jumping on its own at idle. No RPM change, just seems to drop. WTF
Second, there is a noticeable delay in response. Not sure how the factory tachometer reads engine RPM's, but is this delay normal? Im thinking TPS, anyone have any other suggestions? Gonna first reset PCM and take it from there.
tach response - YouTube
<iframe width="640" height="360" src="http://www.youtube.com/embed/fumrN8a96Uk?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>
First, I noticed the tach jumping on its own at idle. No RPM change, just seems to drop. WTF
Second, there is a noticeable delay in response. Not sure how the factory tachometer reads engine RPM's, but is this delay normal? Im thinking TPS, anyone have any other suggestions? Gonna first reset PCM and take it from there.
tach response - YouTube
<iframe width="640" height="360" src="http://www.youtube.com/embed/fumrN8a96Uk?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>