 D-jet started bucking, only after cold start, where to start looking*? |
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| larss |
 Aug 17 2012, 09:15 AM
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Member  Group: Members Posts: 428 Joined: 10-September 09 From: Sweden Member No.: 10,787 Region Association: Scandinavia  |
1,7 -72 all original D-jet, runs great, has just started to get one minor issue:
Otdoor/garage temp about 70F, starting it "cold" from garage, 2 times out of 5 it bucks and dies during the 1st minute running, alredy when driving out of the garage. Restarts immideately OK but bucks again and dies abruptly about 5 to 10 times. Feels like mixture is to lean. After running the 1st minute it runs well and also starts/runs great when warmed up. Checked the CHT sensor when cold - about 3,0kOhms. Points, fuel filter, plugs, fuel pressure checked. As I wrote this only happens 2 starts out of 5 but more and more often lately. Where should I start looking? /Lars S |
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Aug 17 2012, 09:52 AM
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,507 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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pull the lead on the tps. if bucking went away then check/clean contacts on TPS; I raised fuel pressure up a pound (per another's recommendation) on my 76 and it went away. (IMG:style_emoticons/default/popcorn[1].gif)
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| larss |
Oct 25 2012, 08:14 AM
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Member Group: Members Posts: 428 Joined: 10-September 09 From: Sweden Member No.: 10,787 Region Association: Scandinavia |
Finally I found the reason: the "coal pin" in the middle of the distribudor cap had broken, when I took the cap off the broken end fell out, after fitting a new cap the car runs great again. Strange however that it only ran bad at cold engine...not at warm...
You never stop learning! (IMG:http://www.914world.com/bbs2/uploads_offsite/www.lsmteknik.se-10787-1351174483.1.jpg) /Lars S |
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