 73 2.0L Idle problem |
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| cwpeden |
 Dec 26 2012, 01:34 AM
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Great White North, huh?  Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada  |
I'm trying to help a friend solve an idle problem. Idle is low to the point of stalling and backfiring.
Here's what we have tryied so far: Grounds are good Timing is good Dwell is a litlle high Vacuum hoses are good Cyl head temp sensor good Ballast resistor good Points good Cap good rotor good Been through two trobleshooting guides with no results. Need help figuring out a peculiar problem. When I take the vac lines off the dist I get the the usual high revs but they dont go away when the lines are plugged. Could this be a symptom of a bad vac can on the dist? Any thoughts |
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| euro911 |
Dec 27 2012, 04:34 PM
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,885 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California 
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There's not much vacuum being drawn above idle, so a leaky MPS shouldn't affect the mixture too much at higher throttle positions.
Have you checked out PBander's site on troubleshooting? |
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| 914_teener |
Dec 27 2012, 04:57 PM
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#3
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914 Guru Group: Members Posts: 5,264 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
QUOTE(euro911 @ Dec 27 2012, 02:34 PM)  There's not much vacuum being drawn above idle, so a leaky MPS shouldn't affect the mixture too much at higher throttle positions. Have you checked out PBander's site on troubleshooting? I think what Geoff is saying is that your post doesn't rule it out. Mark....I think vacuum is highest at idle...with due respect... he mentioned at idle. Could be both MPS and distributor.....ask me how I know. I would suggest you rule out the MPS first. |
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Posts in this topic
cwpeden 73 2.0L Idle problem Dec 26 2012, 01:34 AM
914itis Was timing set with the vac lines plugged? Try to ... Dec 26 2012, 05:44 AM cwpeden Timing set with vac lines off the dist and plugged... Dec 27 2012, 03:24 AM Bleyseng MPS is correct number (037) and tests good with a ... Dec 27 2012, 10:48 AM cwpeden Does MPS affect idle mixture?
If it was bad I wou... Dec 27 2012, 03:55 PM euro911 Does MPS affect idle mixture?
If it was bad I wou... Dec 27 2012, 05:36 PM Cap'n Krusty
I'm trying to help a friend solve an idle pro... Dec 27 2012, 06:06 PM
cwpeden
I'm trying to help a friend solve an idle pr... Dec 28 2012, 02:10 AM euro911 Valves adjusted correctly?
Dwell should be somewhe... Dec 27 2012, 06:17 PM euro911 Are you sure the two vacuum hoses to the dizzy are... Dec 28 2012, 10:17 AM 914_teener
Are you sure the two vacuum hoses to the dizzy ar... Dec 28 2012, 01:03 PM cwpeden I'm feeling the same myself, about the conditi... Dec 29 2012, 06:41 PM cwpeden Finally had the chance to go to my friends place t... Jan 11 2013, 01:29 AM euro911 If you don't already have a 'MightyVac... Jan 11 2013, 01:44 AM |
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