90 Civic Si: Low idle, & dying at stop lights
Thread Starter
Trial User
Joined: Jul 2011
Posts: 4
Likes: 0
90 Civic Si: Low idle, & dying at stop lights
I use this forum a lot to get fix-it info on my Honda, thanks for the great tips.
I recently changed the main relay and its been running like a charm up until now. About two weeks ago a quiet wining sound has started from the engine. I knew something was up, but it kept rolling. The last week it has been idling super low and dies at stop lights. Although the car is hot, it starts right up again and keeps going until I hit a stop light. If I give it a little gas, it won't die. Since it is hot I believe the main relay is still good. Any ideas, I'm lost. Thanks.
1990 Honda Civic Si, 3 door hatch
212,000 miles
I recently changed the main relay and its been running like a charm up until now. About two weeks ago a quiet wining sound has started from the engine. I knew something was up, but it kept rolling. The last week it has been idling super low and dies at stop lights. Although the car is hot, it starts right up again and keeps going until I hit a stop light. If I give it a little gas, it won't die. Since it is hot I believe the main relay is still good. Any ideas, I'm lost. Thanks.
1990 Honda Civic Si, 3 door hatch
212,000 miles
DO IT ON ALL FOURS
Joined: Sep 2007
Posts: 7,632
Likes: 15
From: IN Your Mind
Re: 90 Civic Si: Low idle, & dying at stop lights
Tune-up, idle setting, vacuum leak, alternator, ect... ect... Do some checking you haven't really described a solid problem to promote a solid solution.
Honda-Tech Member
Joined: Jun 2001
Posts: 3,510
Likes: 0
From: Reading, Pa
Re: 90 Civic Si: Low idle, & dying at stop lights
damn my dohc zc idles super low too and will die from time to time at a light or any stop. well, if im going like 40 and have to stop at a light. if I put it in neutral and try to coast itll usually die right as im about to stop. becuase the rpms are at like 3k and when i try to coast the rpm drops really low, stay there and itll die. So I have to slow down while in gear and downshift while putting my heel on the gas a tad while braking.. Its getting annoying and I need to fuigure it out
Trending Topics
Thread Starter
Trial User
Joined: Jul 2011
Posts: 4
Likes: 0
Re: 90 Civic Si: Low idle, & dying at stop lights
damn my dohc zc idles super low too and will die from time to time at a light or any stop. well, if im going like 40 and have to stop at a light. if I put it in neutral and try to coast itll usually die right as im about to stop. becuase the rpms are at like 3k and when i try to coast the rpm drops really low, stay there and itll die. So I have to slow down while in gear and downshift while putting my heel on the gas a tad while braking.. Its getting annoying and I need to fuigure it out
Honda-Tech Member
Joined: Mar 2010
Posts: 362
Likes: 0
Re: 90 Civic Si: Low idle, & dying at stop lights
if you hear a whining sound then its probibly a vacuum leak...get a can of carb cleaner and spray suspected area and pinpoint the leak..
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
Honda-Tech Member
Joined: Apr 2006
Posts: 5,160
Likes: 0
From: Palmdale, CA
Re: 90 Civic Si: Low idle, & dying at stop lights
if you hear a whining sound then its probibly a vacuum leak...get a can of carb cleaner and spray suspected area and pinpoint the leak..
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
Honda-Tech Member
Joined: Apr 2006
Posts: 5,160
Likes: 0
From: Palmdale, CA
Re: 90 Civic Si: Low idle, & dying at stop lights
if you hear a whining sound then its probibly a vacuum leak...get a can of carb cleaner and spray suspected area and pinpoint the leak..
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
88crxguy..could be your tps going bad..try wigling the wires and see if it makes it act up,also unplug it and plug it back in.might just be dirty.who knows..mine would do a similar thing b4 the rings blew
OP: was the problem fixed ?
Thread
Thread Starter
Forum
Replies
Last Post
Sleepy_Red_hatch
Honda Civic / Del Sol (1992 - 2000)
3
Oct 15, 2005 10:51 AM
