Baught injectors at junk yard still blowing.

Tiny
MIKECON24
  • 2000 CHEVROLET CAVALIER
  • 144 MILES

Baught injectors at junk yard still blowing black smoke and runs rough idleing

Do you
have the same problem?
Yes
No
Monday, January 14th, 2013 AT 5:03 AM

4 Replies

Tiny
CARADIODOC
  • EXPERT
  • 26,888 POSTS

What led you to the injectors? You know they didn't all fail at once. GM has a lot of injector problems but they almost always flow too little fuel. Black smoke is a sign of burning too much fuel. Usually that is because the Engine Computer is commanding too much fuel based on incorrect sensor readings. A sensor can partially fail and not set a diagnostic fault code, but most of the time a code will be set and the Check Engine light will turn on. Did you check for fault codes? If you did, what were they?

Please consider a donation to help us answer more questions.
Was this
answer
helpful?
Yes
No
Monday, January 14th, 2013 AT 6:03 AM
Tiny
MIKECON24
  • MEMBER

Its reading code po191 I changed upper oxy sensor then did the injectors because it did not work

Was this
answer
helpful?
Yes
No
Tuesday, January 15th, 2013 AT 1:14 AM
Tiny
CARADIODOC
  • EXPERT
  • 26,888 POSTS

P0191 Fuel Rail Pressure Sensor Circuit Range/Performance

Is this the description you came up with? I've never run into this code before.

Please consider a donation to help us answer more questions.
Was this
answer
helpful?
Yes
No
Tuesday, January 15th, 2013 AT 3:23 AM
Tiny
MIKECON24
  • MEMBER

Maybe it was po171 I have to check again to make sure.

Was this
answer
helpful?
Yes
No
Tuesday, January 15th, 2013 AT 9:56 PM

Please login or register to post a reply.

Related Smoke Black Questions

Help us by donating