 L Jetronic FI, Idle Good, WOT Not Good, But Only Sometimes! |
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| Cjllong |
 Oct 25 2008, 12:36 AM
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#1
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Member  Group: Members Posts: 66 Joined: 2-July 07 From: Ukiah Member No.: 7,862  |
Alright,
I have L-Jetronic FI and the motor starts and idles. When I hit the gas, it dies at a certain RPM. I'm no stranger to the FI in my car and I have diagnosed many problems, but this one is killing me. The mystery is.... Sometimes it runs like a top, other times it dies. About a month ago, it died at the curb in front of my house. Today, I took it for a ride and it died at the curb again. I took apart the throttle body and checked the Throttle Switch.... it's good. I checked all the other components... All good! I fired it up.... Damn thing ran like a top all over town! I didn't do anything different! I'd like to think I fixed it, but I'm not that good! Any ideas on how to find the actual problem and make it reliable? Chris |
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| 914Mike |
 Oct 25 2008, 07:24 PM
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#2
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Member Group: Members Posts: 330 Joined: 27-January 03 From: San Jose, CA Member No.: 198 |
QUOTE(Cjllong @ Oct 24 2008, 11:36 PM)  Alright, I have L-Jetronic FI and the motor starts and idles. When I hit the gas, it dies at a certain RPM. I'm no stranger to the FI in my car and I have diagnosed many problems, but this one is killing me. The mystery is.... Sometimes it runs like a top, other times it dies. About a month ago, it died at the curb in front of my house. Today, I took it for a ride and it died at the curb again. I took apart the throttle body and checked the Throttle Switch.... it's good. I checked all the other components... All good! I fired it up.... Damn thing ran like a top all over town! I didn't do anything different! I'd like to think I fixed it, but I'm not that good! Any ideas on how to find the actual problem and make it reliable? Chris My '74 would die at random, I finally figured out that the Dual Relay had come partially unplugged. (IMG:style_emoticons/default/headbang.gif) Had to re-tension some of the spade lugs in the harness block and all was well. Dieing at a certain RPM is probably a sticky flap in the AFM or worn contacts on the resistor in the same component. |
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Posts in this topic
Cjllong L Jetronic FI Oct 25 2008, 12:36 AM
jim_hoyland How is the distributer ? Is the vacumm can still w... Oct 25 2008, 07:36 AM zonedoubt Flaky wiring somewhere? An intermittent open circu... Oct 25 2008, 11:41 AM zonedoubt I have been encountering some stumbling on slow in... Oct 25 2008, 10:06 PM
Cjllong The distributor cap and rotor are new. The problem... Oct 26 2008, 12:12 AM |
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