SPONSORED LINKS

Engine missing

Tiny
RONALD FRANKLIN
  • MEMBER
  • 1999 OLDSMOBILE 88
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
I am back again. Sorry. Well I did a major tune-up including all three coils about eight months ago. I replaced also I think it is called the EGR. Today I replaced the air filter, MAS, both o2 exhaust sensors. Still getting the random misfire code. It runs very rich. Could it be a bad injector? Any help would be greatly appreciated. Thanks
SPONSORED LINKS
Monday, September 4th, 2017 AT 5:31 PM

1 Reply

Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
What spark plugs and wires did you use? These cars have a fairly strong spark coming out of the coil that seems to wear out off-brand plugs and wires quickly. OEM stuff does pretty well. Everything else I have tried in them starts to fail within about six months.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Monday, September 4th, 2017 AT 7:40 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links