idle problem

[korsburn]

got a question i just added a new 70 mm throttle body and 70 mm throttle body spacer and now my idle wond come down it sits between 1000 and 1300 could it be my throttle positioning sensor needs cleaning or something. before i did the swap my car would idle really hi out of no where i would shut it off and then start it back up and it would be fine. any one have any ideas

 

[jrichker]

Look for a vacuum leak. Check all the vacuum hoses & fittings. Use a squirt can with motor oil in it to squirt on the mating flages. When you hit the leak, the oil is sucked into it & the engine speed changes. The oil is a bit messy to clean up, but poses no flash fire hazard like an inflammable substance like carb cleaner or propane.