This is topic Car RPMS sticking between shifts in forum Tech Talk at Northern California Ford Owners  .


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Posted by The Rick (Member # 327) on :
 
Ok, I recently had the following put in:
tfs tw heads, track heat intake, stage 1 cam, 65mm accufab tb, 75mm pro-m maf, 30lbs, full exhaust. It has the stock block.

What is happening is that the RPMS don't like to really drop unless I leave it in second and it tends to rev itself a bit between shifts and once in a while it randomly revs when i'm crusing to a stop.

ANy ideas? IS this common or just tune issues? I hope its simple! [Smile]
 
Posted by KCmustangboy (Member # 1927) on :
 
Sounds like throttlebody/sensor problems??? I had my throttle position switch go bad and it really messed up the idle and everything.
 
Posted by st5150 (Member # 51) on :
 
What's your TPS voltage at? Is the sensor okay? What about your 10 pin connectors?
 
Posted by st5150 (Member # 51) on :
 
What's your TPS voltage at? Is the sensor okay? What about your 10 pin connectors?
 
Posted by rob (Member # 50) on :
 
i tcould be something as simple as a worn out throttle cable, or possibly a vacuum leak...
tps is a possibility
tps is a possibility
 
Posted by The Rick (Member # 327) on :
 
quote:
Originally posted by st5150:
What's your TPS voltage at? Is the sensor okay? What about your 10 pin connectors?
To be honest I dont know. I know very little about cars. Is something I can test myself without buying tons of parts?

Thanks
 
Posted by st5150 (Member # 51) on :
 
www.fordmuscle.com has a story on how to clean the 10 pin connectors, its easy.

The TPS sensor... if you really don't want to use any brain power, go to the parts store and buy one for $17. If your problem is still there, go return it [Smile]

If you don't have a volt meter to make sure the sensor reads under 1 volt at idle, then its really a blind shot in the dark.
 
Posted by mike22ca (Member # 1675) on :
 
What about the IAC (Idle Air Control)? Would that be a possibility?
 




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