 1.7L 914 trouble, Its hunting at idle any reasons? |
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| justdrive914 |
  Sep 1 2008, 08:08 AM
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#1
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Member  Group: Members Posts: 88 Joined: 31-July 08 From: Asheville, NC Member No.: 9,374 Region Association: South East States  |
its all stock running fine yesterday no problems today i go out it wont crank i turn and check and turn and check had spark and fuel. Finally after like 45 min it cranked no clue why? bu it hunts at idle varying at first about 800 rpm up and down up and down then i found small leak in vacuum between aar and air distributor nothing be fixed it still hunts though just about 200 rpm now and kinda makes a small back fire noise while idling no boom but, putt putt , over night i dont get it?
Any suggestions? thanks andrew (IMG:style_emoticons/default/WTF.gif) |
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| TheCabinetmaker |
Sep 1 2008, 08:21 AM
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#2
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Idle hunting can be caused by a number of things. V acuum leak is one of them. Others are misadjusted tps, and idle mixture screw on ECU.
I would first check for more vacuum leaks and set dwell and timing, |
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| swl |
Sep 1 2008, 08:48 AM
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#3
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
when you say it would not crank - do you mean that the starter would not turn the engine over? 'turn and check' - can you expand that?
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| justdrive914 |
Sep 1 2008, 11:15 AM
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#4
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Member Group: Members Posts: 88 Joined: 31-July 08 From: Asheville, NC Member No.: 9,374 Region Association: South East States |
QUOTE(swl @ Sep 1 2008, 06:48 AM)  when you say it would not crank - do you mean that the starter would not turn the engine over? 'turn and check' - can you expand that? no starter turned and engine got fuel and spark but just didn't crank. |
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| swl |
Sep 1 2008, 11:52 AM
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#5
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
sounds like you need a close look at all your FI components. There are several good threads available. What do your spark plugs look like?
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| roadster fan |
Sep 1 2008, 02:20 PM
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#6
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Project Frankenstein !!!!!!!! Group: Members Posts: 1,009 Joined: 24-November 05 From: Aptos, CA Member No.: 5,184 Region Association: Northern California |
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