 Low Idle Issue... Help!, Fresh 2.0 won't idle properly???? |
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| 73Phoenix20 |
 Dec 27 2006, 10:03 PM
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Member  Group: Members Posts: 334 Joined: 15-June 05 From: Michiana Member No.: 4,283  |
Got a puzzler that I know someone has had the misfortune to resolve in recent history! Newly rebuilt 2.0 4 banger, with virtually everything new; ran great until it started showing signs of extreme rich fuel mixture. Traced that back to a misplumbed fuel pump (imagine THAT ever happening!) which doubled the fuel pressure and consequently increased the amount of fuel delivered! That issue is now resolved, but now, when the car comes to a stop, the idle drops to just above "0" and tries to quit, but usually catches itself and then goes up to about 900 rpm, and is fine... Not critical but very irritating in an otherwise super strong running 2.0.
Guesses... Throttle Position Sensor? If so how to fix, or just find a replacement? Vacuum leak? Have all new lines and will be tackling that project this winter. Other ideas? Open to all suggestions... hate to just start throwing parts at it since many are not even available any more! Thanks in advance, Gang! (IMG:style_emoticons/default/beerchug.gif) |
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| TheCabinetmaker |
Dec 28 2006, 07:16 AM
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#2
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I drive my car everyday Group: Members Posts: 8,325 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Could be running rich at idle. Try adjusting the idle mixture screw on the ecu. One direction makes it rich. The other lean. Never can remember which is which. I "think" full clockwise is full rich.
Did you have a chance to seat the rings? Curt |
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| rmital |
Dec 28 2006, 07:38 AM
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#3
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Northeast optimist Group: Members Posts: 1,952 Joined: 12-December 05 From: Park Ridge, NJ Member No.: 5,268 |
QUOTE(vsg914 @ Dec 28 2006, 10:16 AM)  Could be running rich at idle. Try adjusting the idle mixture screw on the ecu. One direction makes it rich. The other lean. Never can remember which is which. I "think" full clockwise is full rich. Did you have a chance to seat the rings? Curt turn "R"ight = "R"ich turn "L"eft = "L"ean |
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Posts in this topic
73Phoenix20 Low Idle Issue... Help! Dec 27 2006, 10:03 PM
Jeffs9146 FI or Carbed?
If it is FI I would check the CHT g... Dec 27 2006, 10:13 PM 73Phoenix20 100% original and stock Fuel Injection... Brand n... Dec 27 2006, 10:17 PM TROJANMAN my fresh 2.0 did the same after about 200-300 mile... Dec 27 2006, 10:17 PM rmital ....bad injector....leaky, running rich at idle ca... Dec 28 2006, 07:04 AM solex Did you check the CHT and the intake are temp sens... Dec 28 2006, 08:03 AM Jeffs9146 I put a new CHT in and had the same problem. It tu... Dec 28 2006, 12:05 PM RonD Make sure timing, dwell is spot on. With points it... Dec 28 2006, 04:35 PM
jkeyzer Some random thoughts:
Check the spark plugs and m... Dec 28 2006, 06:16 PM 73Phoenix20 You know, the plugs COULD be fouled AGAIN! Di... Dec 28 2006, 07:56 PM |
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