Ultra sensitive throttle - barely touch pedal and goes to 2.5k
#1
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Ultra sensitive throttle - barely touch pedal and goes to 2.5k
Okay, so I have a bouncing idle. I've searched and searched and searched the posts, and most commonly seems to be a vacuum leak. So I've checked and checked and checked and can't find a vacuum leak. But in all this searching for a vacuum leak, I've noticed something else:
When I start the car from cold, it idles at 2.5 k for about 2-3 minutes. Once it warms up, it goes down to 900 RPMs, but then bounces from 900 to 1,500. If I so much as touch the gas pedal, it goes immediately to 2.5 K RPMs. There is no way to hold the RPMs at less than 2.5 K using the throttle. Also, every once in a while, the idle bounce goes away when there's no electrical load. But the minute I add any electrical load, the idle bounce starts.
So......bouncing idle aside, why can't I hold the revs at anything less than 2.5 K? Car runs fine otherwise.
Thanks for any help.
When I start the car from cold, it idles at 2.5 k for about 2-3 minutes. Once it warms up, it goes down to 900 RPMs, but then bounces from 900 to 1,500. If I so much as touch the gas pedal, it goes immediately to 2.5 K RPMs. There is no way to hold the RPMs at less than 2.5 K using the throttle. Also, every once in a while, the idle bounce goes away when there's no electrical load. But the minute I add any electrical load, the idle bounce starts.
So......bouncing idle aside, why can't I hold the revs at anything less than 2.5 K? Car runs fine otherwise.
Thanks for any help.
#4
Punkrockin JUNGLIST
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Okay, so I have a bouncing idle. I've searched and searched and searched the posts, and most commonly seems to be a vacuum leak. So I've checked and checked and checked and can't find a vacuum leak. But in all this searching for a vacuum leak, I've noticed something else:
When I start the car from cold, it idles at 2.5 k for about 2-3 minutes. Once it warms up, it goes down to 900 RPMs, but then bounces from 900 to 1,500. If I so much as touch the gas pedal, it goes immediately to 2.5 K RPMs. There is no way to hold the RPMs at less than 2.5 K using the throttle. Also, every once in a while, the idle bounce goes away when there's no electrical load. But the minute I add any electrical load, the idle bounce starts.
So......bouncing idle aside, why can't I hold the revs at anything less than 2.5 K? Car runs fine otherwise.
Thanks for any help.
When I start the car from cold, it idles at 2.5 k for about 2-3 minutes. Once it warms up, it goes down to 900 RPMs, but then bounces from 900 to 1,500. If I so much as touch the gas pedal, it goes immediately to 2.5 K RPMs. There is no way to hold the RPMs at less than 2.5 K using the throttle. Also, every once in a while, the idle bounce goes away when there's no electrical load. But the minute I add any electrical load, the idle bounce starts.
So......bouncing idle aside, why can't I hold the revs at anything less than 2.5 K? Car runs fine otherwise.
Thanks for any help.
#5
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Thanks, i'll check TPS and brake booster
Mods are upgraded injectors, PFS intercooler, fluidyne radiator, PFS exhaust, blow off valve, computer with controller, turbo timer, and reliability mods.
#6
Racecar - Formula 2000
This may or may not apply, but check out this thread:
https://www.rx7club.com/showthread.p...lity+secondary
https://www.rx7club.com/showthread.p...lity+secondary
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