Car idles at 1100 when I start it up.
#1
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Car idles at 1100 when I start it up.
Hello,
I own a 93 touring rx7.
Car has low miles with a Down Pipe and Cat back exhaust.
On a cold start up the car stays at 1100 rpm until i have driven for about 2-3 mins.
Is this normal?
Also when i rev the engine in when the car is stopped, the rpm drops down to 100 then jumps back up to about 750-800... what may be causing the dip in RPM after reving the engine from a standstill... ?
I own a 93 touring rx7.
Car has low miles with a Down Pipe and Cat back exhaust.
On a cold start up the car stays at 1100 rpm until i have driven for about 2-3 mins.
Is this normal?
Also when i rev the engine in when the car is stopped, the rpm drops down to 100 then jumps back up to about 750-800... what may be causing the dip in RPM after reving the engine from a standstill... ?
#3
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Thanks for you replay..
For the second party...
When you rev you car what rpm does it drop down to when you let go of the gas?
Usually it drops to 100 rpm, sometimes almos stalls on a hot day that is, and then goes back to normal rpms.
For the second party...
When you rev you car what rpm does it drop down to when you let go of the gas?
Usually it drops to 100 rpm, sometimes almos stalls on a hot day that is, and then goes back to normal rpms.
#5
The Man
The first line on the tach is 500rpm not 100, which is probably what you mean, you need to adjust your idle adjust screw under the intake elbow. Turn it all the way in, then back it out 1 to 1 1/2 turns, this should be good(you may have to play with it a little). I have yet to set idle on any car that stays perfect, especially once modded.
Art
Art
#7
Rotary Enthusiast
1100 is normal for warmup, even without the accelerated warmup system, your car should be around there for the first few mins.
as far as the second problem i think rts3gen is right, you might just be looking at the wrong line, but you still shouldnt be stalling, you might have a loose vaccuum hose somewhere
as far as the second problem i think rts3gen is right, you might just be looking at the wrong line, but you still shouldnt be stalling, you might have a loose vaccuum hose somewhere
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#9
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Just start the car in gear if you have a manual. That disables the accellerated warmup system and prevent you RPMs from going to 3k immediately after starting. Which just can't be healthy for any engine...
#12
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my idle is something like that too, give or take a few hundred RPM's.
starting a 3k rpm's is kool, everyone is lookin at ur car because its rev high then its blows off. i dont think this could be that bad for rx7's if bad at all because alot of rx7 drivers dont put there car in gear while starting up and doin this everyday for the next 5 years of the rx7 life. if it was a bad thing i think majority of rx7's would of died from the problem alone.
Timmy
starting a 3k rpm's is kool, everyone is lookin at ur car because its rev high then its blows off. i dont think this could be that bad for rx7's if bad at all because alot of rx7 drivers dont put there car in gear while starting up and doin this everyday for the next 5 years of the rx7 life. if it was a bad thing i think majority of rx7's would of died from the problem alone.
Timmy
#13
i think the concern is that suddenly jumping your revs up to 3k on a cold start creates unnecessary wear and tear on the cold motor. sure it won't blow up your motor but it's rough on the moving parts. same reason you don't redline any engine immediately after firing up cold, just common sense
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