1988 Chevy Truck timing not right

Tiny
CHEVY 1
  • MEMBER
  • 1988 CHEVROLET TRUCK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 157,888 MILES
When checking timing per emission sticker timing will not go to base timing?Base timing should be zero but cant check?I've had some running issues and codes. Replacement of these parts were nessary. Coolant temp sensor for computer, egr diaphram leaking, tstat sticking over heating, catalytic converter blockage. Truck runs and idles but after a short distance dies, [like if flooding condition]. Turns right back on and will not repeat problem until truck cools. Code 42 pops up which is normal because truck dies cutting off signal to computer no help. Thanks for the help.
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Friday, October 30th, 2009 AT 9:14 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
When you check the ignition timing the EST wire must be disconnected.
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Friday, October 30th, 2009 AT 10:31 PM
Tiny
CHEVY 1
  • MEMBER
Wire is disconnected per sticker and will not return to base timing computer advance wont cancel?

Updated:
wire was disconnected and timing will not return to base, dist moves, advance and retard, but computer advance wil not disingage per wire disconnect?
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Saturday, October 31st, 2009 AT 7:07 PM
Tiny
RASMATAZ
  • MEMBER
Check the EST wire back to the computer also test the knock sensor-
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Monday, November 2nd, 2009 AT 4:46 PM

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