Injector question
Thread Starter
Instructor
Joined: Jul 2004
Posts: 118
Likes: 0
From: Smithfield Va.
Injector question
Is it likely that an injector would stick intermittently, and if so, would it cause knocking, pinging, or detonation? My timing seems to be changing under different load conditions also. Sometimes it runs for days without a problem and then all of a sudden it won't take gas, check engine comes on and it seems the timing freaks out. maybe it's a combination of things because it seems to do it more when it's hot outside or while driving in the rain. '90 L98 w/auto trans.
Drifting
Joined: Nov 2002
Posts: 1,593
Likes: 0
From: Mobile AL
St. Jude Donor '05
Things to do:
#1 - have the code(s) checked. That will probably tell you what and maybe even where the problem is. Too many things that will cause some of your problems to start guessing.
#1 - have the code(s) checked. That will probably tell you what and maybe even where the problem is. Too many things that will cause some of your problems to start guessing.
Melting Slicks
Joined: May 2004
Posts: 2,524
Likes: 10
From: Lufkin Texas
St. Jude Donor '05-'06
Originally Posted by brian pinner
Is it likely that an injector would stick intermittently, and if so, would it cause knocking, pinging, or detonation? My timing seems to be changing under different load conditions also. Sometimes it runs for days without a problem and then all of a sudden it won't take gas, check engine comes on and it seems the timing freaks out. maybe it's a combination of things because it seems to do it more when it's hot outside or while driving in the rain. '90 L98 w/auto trans.
A new set of Accel 24 lbs/hr. injectors fixed my baby right up. If you have one bad injector I would suggest replacing all.
Your symptoms could be many things so check for codes, and if no codes or a code 45 are thrown, try listening to your injectors. Because just checking for ECM injector pulse will not reveal if one is sticking. Good luck.
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Originally Posted by brian pinner
Is it likely that an injector would stick intermittently, and if so, would it cause knocking, pinging, or detonation? My timing seems to be changing under different load conditions also. Sometimes it runs for days without a problem and then all of a sudden it won't take gas, check engine comes on and it seems the timing freaks out. maybe it's a combination of things because it seems to do it more when it's hot outside or while driving in the rain. '90 L98 w/auto trans.
Its obviously a "soft" code that will reset itself and the car will run ok again. Probably a code 43, having to do with the knock sensor or ESC.
check your codes as others have suggested and let us know what you find.
Thread Starter
Instructor
Joined: Jul 2004
Posts: 118
Likes: 0
From: Smithfield Va.
'preciate it fellows. Trying to straighten this thing out before Carlisle. I do believe it's one injector so I'll pull the codes and do some listening. Don't think I'll get injectors replaced this week though if that is the problem.
