2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Idle problem

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Old Jan 12, 2008 | 07:41 PM
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tHaToNeGuY
 
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From: Casper, Wy
Idle problem

Alright well i got my car running today, but it wont hold idle i can get it started but i have to keep on the gas, but now i can crank it will start but then just die's so if some one can help me would be much appreciated.
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Old Jan 12, 2008 | 08:28 PM
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Old Jan 12, 2008 | 10:04 PM
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From: Casper, Wy
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Old Jan 12, 2008 | 10:51 PM
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I would avoid the bumps, they can get you in trouble.

This is an excellent example of a vacuum (boost) leak. Get some ether or carb cleaner and spray it around until you hear the engine rev, the vacuum leak should be near the last place that you sprayed. (It is often convenient to remove and bypass the intercooler when looking for vacuum leaks.)
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Old Jan 12, 2008 | 11:31 PM
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Im NA and what do you mean by spraying carb cleaner were, I dont understand that.
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Old Jan 13, 2008 | 12:27 AM
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Spray it around the vacuum lines. It'll create a seal where there was a leak, which will cause the engine to rev. When you hear it rev, you'll know you've found your leak and can replace the hose or what have you as necessary.
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Old Jan 13, 2008 | 01:53 AM
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From: Casper, Wy
It Doesnt Stay Started That Is What I Said.
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Old Jan 13, 2008 | 02:11 AM
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If you stay on the gas will it keep running? also if it kept running would the car idle properly if the temp is at a normal level?
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Old Jan 13, 2008 | 02:16 AM
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From: Casper, Wy
Not sure im hooking up the gauges as i type.
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Old Jan 13, 2008 | 04:20 AM
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Look under the hood for a vacuum leak. Something thats bad enough to make the car stall immediately without giving it more gas should be pretty obvious to spot.
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Old Jan 13, 2008 | 06:21 AM
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Well, i have another question, would spark plugs be the problem like mine are probably completely fouled out. so if that is the case would that do that.
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Old Jan 13, 2008 | 06:33 AM
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Before some sort of admin troubles start happening... DON'T BUMP!
This isn't a different website that you know the name of...
If you bump, it looks like it's been answered and we won't bother...

Onto Idle Issues!
Check out the Factory Service Manual for Idle troubles as well. TPS could be out of adjustment and such.
Do typical maintenance things as well (Spark plugs, Fuel Filter, etc.)
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Old Jan 13, 2008 | 03:43 PM
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K i will check some things today.
thanks.
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Old Jan 13, 2008 | 05:56 PM
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Well found out that i need some plugs and wires not getting any spark, so that is what is next.
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Old Jan 13, 2008 | 06:56 PM
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I guess you found the problem, but I have something to add for future reference if anyone else comes to this thread. It could also be the alternator, i had this problem and couldn't figure it out for like several days. The alternator was jumpy on charging and sometimes the car would start losing voltage and just die.
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Old Jan 13, 2008 | 08:01 PM
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From: Casper, Wy
Well did it ever start up and then just die instantly, It will crank, start up rev at like 2grand then just kill over and die.
any help, besides spark issues
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Old Jan 14, 2008 | 04:33 PM
  #17  
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Well found out that the car was out of gas. Starts but wont hold idle just kills over, So does any one know what might cause it not to hold idle. Let me know asap.
Thanks.
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Old Jan 14, 2008 | 04:46 PM
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You just said the car was out of gas..........
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Old Jan 14, 2008 | 04:52 PM
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Same thing happened to me but mines a t2 so i dont know if it apply to na. there was a little screw on the throttle body by the firewall that need to be adjust to hold it i spent 6 months lookin for this so hope this helps just pm me if you need better explaining
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Old Jan 14, 2008 | 04:54 PM
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From: Casper, Wy
I put gas back in it if you read the post you would understand.
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Old Jan 14, 2008 | 04:59 PM
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I'm having a very similar problem. Take a look if u want.
http://https://www.rx7club.com/showthread.php?t=721172
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Old Jan 14, 2008 | 06:04 PM
  #22  
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tHaToNeGuY
 
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From: Casper, Wy
Well would it help if i turned the idle screw, what way is which, left air, right air, or left fuel, or right fuel. Im not sure which way.
And is it on top of the TB.
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Old Jan 15, 2008 | 10:44 AM
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Ya, I read the post. You were having a problem saying it wouldn't start..............
Then it was out of gas, which is humorous in itself.
You mentioned nothing about putting gas back in it.

Check your TPS Sensor, I had a rough Idle problem, unplugging mine made it go away.

I also had a problem with it not wanting to start last week. Your BACV might be bad, I changed mine out and viola, running FC

Or add gas hahahahaha
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Old Jan 15, 2008 | 10:55 PM
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From: Casper, Wy
BAVC, what it that, let me know quickly.
I replace the TPS wanted to start quicker but will try that.
Yeah i just relized that i didnt put that in the post.
Thanks and let me know.
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Old Jan 15, 2008 | 11:35 PM
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first, you need to check for vacuum leaks. second, the procedure for setting the throttle body adjustment screws are in the fuel and emissions section (nonturbo) of the FSM.
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