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2002 Chevrolet S-10 Bogging

Tiny
JACOB HENDRIX
  • MEMBER
  • 2002 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
I have a 2002 Chevy s10 v6 vortech engine that's starts and sounds good but when it's reved to 1500 rpm it bogs down in park. When I teyed to drive it around the block it bogged way down and wouldn't hardly go I replaced the spark plugs, 2 O2 sensor, mass air flow sensor, and throttle position sensor still nothing. When I ran for codes it came back random misfire, both O2 sensors and mass airflow sensor
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Sunday, August 30th, 2015 AT 1:02 PM

7 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
What is the fuel pressure?
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Sunday, August 30th, 2015 AT 2:15 PM
Tiny
JACOB HENDRIX
  • MEMBER
  • 8 POSTS
I'm not sure I don't have a way to test it at the moment but I also just replaced the fuel pump and replaced the pvc valve if that could help narrow it down?
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Sunday, August 30th, 2015 AT 2:24 PM
Tiny
WRENCHTECH
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You need to read the fuel pressure. That should have been done BEFORE replacing a fuel pump.
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Sunday, August 30th, 2015 AT 2:26 PM
Tiny
JACOB HENDRIX
  • MEMBER
  • 8 POSTS
I did check befor replacing but this took place about 3 weeks ago after replaceing the pump the readings where right should I check again?
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Sunday, August 30th, 2015 AT 2:31 PM
Tiny
WRENCHTECH
  • MECHANIC
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Yes, you should. We need to know the exact pressure.

I also need the exact code numbers being set.
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Sunday, August 30th, 2015 AT 2:33 PM
Tiny
JACOB HENDRIX
  • MEMBER
  • 8 POSTS
Ok so I figured out my bogging problem it was a cattalc convertor? Now after replaceing plugs, wires, coil, pvc, distributor, all 3 O2, fuel regular, and new cat now but still has a random misfire any ideas? The misfire happens right befor it shifts
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Friday, September 11th, 2015 AT 4:04 PM
Tiny
WRENCHTECH
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Any other codes being set now. P1345 maybe?

How did you set up the distributor position when you installed it.
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Friday, September 11th, 2015 AT 4:29 PM

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