rpm rising while not on accelerator

[Revere sho]

has anyone ever seen this. i was driving my supercharged 5 speed sho and after i shifted into second, i shifted it a little hard and then when i stopped the car at the stop sign i took my foot off of the clutch and had it in neutral and the RPM just started rising up to 3 grand and then so then i shut off the car to see if something happened under the hood and then afterwards i couldnt start the car back up.

do any of you know waht the problem could be?

 

[Yamaha V6]

[Smarta$$ Reply Mode On]
Um, because you bought a supercharged SHO?
[Smarta$$ Reply Mode Off]


Did you perhaps get the rug caught on the gas pedal? Has happened to me before. Make sure the throttle body & accelerator cable are moving fluidly, without binding up.

It's very easy to flood a blown SHO. Foot to the floor while cranking until it catches, then let off (after you check out the cable & TB, etc.)

 

[SHO--ripper]

I'm not sure if you're having the same problem, but on several of my SHOs i've had the cruise control connector stick on me, causing the RPMs to rise. I removed it and never had that problem again.

 

[93_blk_blk_mtx]

Most likely your Mass Air Sensor....

 

[95SHO32]

clean out the idle air motor and ck for codes if any. also as idle air motor get old they hanging up.

 

[Revere sho]

thanx ya i dont know what it was i do want to get it checked out cause the car ended up starting right back up after i got a jump.

and thanx for all your help im going to check my iac my throttle and my tps to make sure everything is running good.

 

[ES_8CH_OH]

I had the RPM's stick at 3 grand with my '88 Mustang. It was the throttle position sensor (TPS). It was replaced and calibrated to the proper voltage. I'm not sure how to calibrate it, but you could look around here or SHOtimes.com