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Old 10-06-02, 05:09 PM
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an N/A question

yo yo

I was wondering what is everyone runnin there R/L (rich lean) screw at is it safe to turn all the way to lean?
Old 10-06-02, 05:11 PM
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Isn't that only for idle? I wouldn't touch it!
Old 10-06-02, 05:26 PM
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no, no it's not the idle screw. (i dont think) it's in the bottom right hand side of the hood. By the coils and stuff
Old 10-06-02, 06:53 PM
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Re: an N/A question

Originally posted by DC350
yo yo

I was wondering what is everyone runnin there R/L (rich lean) screw at is it safe to turn all the way to lean?
Uh, what the freaken manual says!
Old 10-07-02, 01:42 AM
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Riiiight, i dont know how many owners this car has been threw but i dont have a freakin manual.....
Old 10-07-02, 01:59 AM
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I think you're taking about the crank angle sensor
Old 10-07-02, 02:08 AM
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no, he's talking about the idle mixture adjustment pot. (varistor) Yep, that screw controls idle a/f mixture and runing it that lean would be stupid. Get it on a dyno and set it to stoich. Any richer and you'll potentially bog the motor while idling or foul plugs. You'll need a piggy back system to mess with your fuel maps or a stand alone aftermarket computer.
Old 10-07-02, 10:48 AM
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YA WHAT HE SAID
Old 10-07-02, 11:54 AM
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i was the one that brought this is with DC350.. i have it turned to L i have had to both ways.. i get about 380km per tank full R and 470 km full L.. at full L it seems smoother at idel and though the powerband and at full R seems ruffer at idel cuz its richer where it doesnt need to be and slower thoughout the rpm band..
Old 10-07-02, 12:21 PM
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where does one find this magic screw??? cause mine is running really rich, and i get **** for gas mileage
Old 10-07-02, 12:23 PM
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on the front passenger strut tower pillar..
Old 10-07-02, 01:30 PM
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dont touch the rich lean screw. it will make u shoot more flames and all. but its gonna rob your hp and mess **** up
Old 10-07-02, 01:47 PM
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That screw only adjusts Idle air mixtures, I dont think it should have any affect on the actual a/f mixture other than idle. I wouldnt mess with it, there is a reason that there was plastic melted over it from the factory.
Old 10-07-02, 03:57 PM
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And now an answer from someone who knows what they're talking about:

That screw is the idle mixture screw. It only effects the mixture at idle. Don't touch it unless you have to. More than likely, the rich condition at idle is caused by another problem (bad ACV, leaky injectors, etc) and messing with the screw will only cause you problems.
Old 10-07-02, 04:53 PM
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Originally posted by Aaron Cake
And now an answer from someone who knows what they're talking about:

That screw is the idle mixture screw. It only effects the mixture at idle. Don't touch it unless you have to. More than likely, the rich condition at idle is caused by another problem (bad ACV, leaky injectors, etc) and messing with the screw will only cause you problems.
No kidding. Like I said read the freaken manual. It also states don't TAMPER with It unless you are replacing It!
Old 10-07-02, 10:42 PM
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Yep...i said that too...... d:
Old 10-07-02, 10:48 PM
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why would you run it differently? I mean i don't think there wold be any increase in power by running richer or leaner on an na, but i could be wrong.
Old 10-07-02, 10:56 PM
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****... is this the same as the screw on top of the intake manifold, or am I allowed to **** with that one?
Old 10-07-02, 10:58 PM
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Thats to adjust you air.
Old 10-07-02, 11:12 PM
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thata adjusts your idel.. you can play with that one.. well....
Old 10-07-02, 11:23 PM
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Originally posted by bcty
thata adjusts your idel.. you can play with that one.. well....
It adjusts your IDLE SPEED. I don't remember the manual saying to play with It.
Old 10-07-02, 11:38 PM
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Originally posted by Aaron Cake
And now an answer from someone who knows what they're talking about:

That screw is the idle mixture screw. It only effects the mixture at idle. Don't touch it unless you have to. More than likely, the rich condition at idle is caused by another problem (bad ACV, leaky injectors, etc) and messing with the screw will only cause you problems.
Ding ding!! And the ONLY time you will need to mess with it is in the event of a new motor, or some other form of MAJOR maintenance. That mixture screw (which on most of your cars is plugged with some epoxy to prevent tampering), the timing, and the idle air screw on the top of the TB all help determine your idle speed and idle mixture. Basically, not anything you can realistically adjust unless you have a good 02 sensor or a sniffer of some sort...

Rat
Old 10-07-02, 11:42 PM
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IF U STILL DONT KNOW WHAT RUNNING TOO RICH N TOO LEAN DOES TO YOUR CAR DONT BOTHER TOUCHING IT..HAHA
Old 10-08-02, 03:21 PM
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Originally posted by silverrotor


It adjusts your IDLE SPEED. I don't remember the manual saying to play with It.
Uhmm.. the one on top of the intake manifold is mentioned in the manual (and how to adjust it...) problem is that I actually had a bad sensor too.. lucky me...
Old 10-08-02, 03:33 PM
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You silly boy. There Is a difference b'n adjusting It and playing with It a.k.a ******* AROUND WITH IT why don't you read more closely! I was also refering to the Variable Resistor.

Last edited by silverrotor; 10-08-02 at 03:39 PM.


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