High idle with clutch pedal out, normal idle when clutch pedal pushed in.
#1
Administrator
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High idle with clutch pedal out, normal idle when clutch pedal pushed in.
Ok so recently I have had a little bit of a hunting/surging idle while the car warms, if i push the clutch in it stops surging. Once it is at full operating temp. the idle remains high, about 1250 ON THE TACH. If I push the clutch pedal in it will drop to "normal", about 800 or so on the tach.
what do you think- should i be looking into a new clutch? or do I have a bad neutral switch?
what do you think- should i be looking into a new clutch? or do I have a bad neutral switch?
#3
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Thread Starter
interesting.
more info. yesterday evening when i was out driving around for a bit (getting on it a bit more than usual as i was alone in the car) i didnt have the surging at all AND when i was at some lights the idle was NORMAL instead of high.
today it was half and half. the first half(ish) of driving around today it was high unless i put the clutch pedal in but later it was idling normally.
more info. yesterday evening when i was out driving around for a bit (getting on it a bit more than usual as i was alone in the car) i didnt have the surging at all AND when i was at some lights the idle was NORMAL instead of high.
today it was half and half. the first half(ish) of driving around today it was high unless i put the clutch pedal in but later it was idling normally.
#4
Grasshopper
iTrader: (1)
Weird...
When you have these problems, can you still use Cruise Control?
This will eliminate the switch on the clutch pedal (not the interlock switch).
You can test the neutral switch if you like:
https://www.rx8club.com/series-i-do-yourself-forum-73/diy-test-neutral-reverse-switch-200453/
When you have these problems, can you still use Cruise Control?
This will eliminate the switch on the clutch pedal (not the interlock switch).
You can test the neutral switch if you like:
https://www.rx8club.com/series-i-do-yourself-forum-73/diy-test-neutral-reverse-switch-200453/
The following users liked this post:
kunta_kent (02-29-2020)
#7
Administrator
Thread Starter
Weird...
When you have these problems, can you still use Cruise Control?
This will eliminate the switch on the clutch pedal (not the interlock switch).
You can test the neutral switch if you like:
https://www.rx8club.com/showthread.php?t=200453
When you have these problems, can you still use Cruise Control?
This will eliminate the switch on the clutch pedal (not the interlock switch).
You can test the neutral switch if you like:
https://www.rx8club.com/showthread.php?t=200453
i dont have aprius
#10
WENTGERMAN
iTrader: (6)
I don't think the neutral switch would cause surging. That's just me though.
Page 68 in the FSM engine problem section has more info.
Measure voltages at PCM terminal 4w, 4z, 4f, 20.
If PCM terminal 4f voltage is not as specified inspect CPP switch
Page 281 of the engine details sections gives you instructions on how to test the CPP unit.
Good luck. Let us know what ya find yea?
Page 68 in the FSM engine problem section has more info.
Measure voltages at PCM terminal 4w, 4z, 4f, 20.
If PCM terminal 4f voltage is not as specified inspect CPP switch
Page 281 of the engine details sections gives you instructions on how to test the CPP unit.
Good luck. Let us know what ya find yea?
#11
Administrator
iTrader: (7)
neutral switch can cause surging in the idle, I had it happen and the tach kept bouncing around a few hundred rpm.
zoom: what's this about you borrowing your neighbor's jack stands. You don't have your own?! n00b.
zoom: what's this about you borrowing your neighbor's jack stands. You don't have your own?! n00b.
#12
Administrator
Thread Starter
well he already owns them(he's rehabbing a vw bus), so.....he owns a lawn edger to ... kinda like buying wheels... i mean you already have the ones i want so.... ill just borrow yours
#13
this space for rent
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Sounds like the neutral switch to me.
I had this problem you described for a few months. Sometimes would throw the code for the neutral safety switch, sometimes it wouldnt.
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