 Low Idle Problem Help..? |
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| detoxcowboy |
 May 5 2009, 07:59 PM
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#1
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Senior Member  Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa  |
I have a 74 2.0
Idle stays low (verge of stalling) and Idle screw has no effect.. Jump on the throttle a few times and the Idle stays High.. Turn it off and restart the Idle is low again.. What is the vaccum supposed to be in the system? I reset the timing and that helped a little. Idle is steady. Is my TPS mal Adjusted. Wher and how to I start to search for what is wrong? After 2500 rpm the car runs and climbs but try to hold at 2500 rpm in the driveway and the rpm starts to drop slowly.. Things I recently changed.. New control NOS unit (matches the car year and the mps) New Vacumm Hoses and Fuel Lines.. New Cylinder Heads (valves etc.) 3 New Engine Harnesses (Ignition, Alternator and FI) New Cold Start Vlave New temp 1 and temp 2 sensors.. Had Serviced the Injectors too ** I DiD change the New decel valve hose routing to Match what is discussed in THE ECU link which differs from pelican parts.. ANy help is goo help.. |
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| SLITS |
May 5 2009, 08:28 PM
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
As I remember, not plugged but disconnected.
You can also richen it more and see if the idle comes up. Generally, with all else working correctly, the idle will come up and you can adjust it with the idle screw on the throttle body. Also, what's your fuel pressure? Should be 29.4 lbs at all times. If low it will run lean and not idle correctly. Car will also idle low if your timing is retarded. Make sure you timed to the correct mark. |
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| detoxcowboy |
May 5 2009, 09:06 PM
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#3
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
QUOTE(SLITS @ May 5 2009, 07:28 PM)  As I remember, not plugged but disconnected. You can also richen it more and see if the idle comes up. Generally, with all else working correctly, the idle will come up and you can adjust it with the idle screw on the throttle body. Also, what's your fuel pressure? Should be 29.4 lbs at all times. If low it will run lean and not idle correctly. Car will also idle low if your timing is retarded. Make sure you timed to the correct mark. I WILL RE-TIME IT WITH IT DISCONNECTED AND CHECK THE TIMING MARK IS TRUE.. |
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Posts in this topic
perrin1097 Low Idle Problem Help..? May 5 2009, 07:59 PM
SLITS On your brain, try richening the idle mixture by r... May 5 2009, 08:03 PM perrin1097 I tried that helps a little..
When you set the t... May 5 2009, 08:21 PM
perrin1097
As I remember, not plugged but disconnected.
You... May 5 2009, 09:04 PM Jeffs9146 I would check to make sure you have the correct CH... May 5 2009, 08:30 PM
perrin1097
I would check to make sure you have the correct C... May 5 2009, 08:59 PM SLITS How many clicks? I figure the car is 30+ years ol... May 6 2009, 07:30 AM perrin1097 Alright problem solved!! The decel valve t... May 6 2009, 07:56 PM |
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