64elko

hello

what's happening is my timing keeps advancing ,,I set it at 6 BTDC..drive it 50 miles and the temp gage is 200 +,,check timing and it has advanced 14 degrees BTDC.. buy it self....I replaced every sensor on the motor..checked fuses check all grounds everything on this car is new..everything on this motor is matched for an 86 305 TPI... i cant keep driving my car to work like this to work and home ,MUCH LONGER IT'S MY ONLY FORM OF TRANSPO,PLEASE PLEASE I NEED HELP... A.S.A.P.


Rick

1990z28

When you set your timing did you unplug the thing thats on passenger side near hood strut. If so when you set timing thats with that unplugged when you plug it in your computer will advance the timing I set mine a 0 and its running at 12 with it plugged back in. I hope this is some help.

64elko

hello
yes i unpluged the timing for the ecm to set timming,,, retarded it to zero ,ran ok on the way home ,,checked timing it was 14BTDC.... still same problem.... an i have NO check light coming on... i keep my timing light in my car now...

1990z28

Is it running bad at all or is it running good. Only thing I can think of if its running bad is to set timing a few negative degrees and if it goes back that high its just the way the computer whats to run the timing for it. Thats the only thing I can think of.

KNBlazer

with the EST unplugged you set your timing to specs either TDC, 6 or 10... then you plug your EST back in and your timing should advance ... only check your timing with the EST unplugged, this is the timing that is considered your base timing and is the only way to check your timing with a timing light ..

Stangski09

iTrader: (10)

And when you plug the EST back in after setting base timing, turn the car off, and remove the negative battery cable for 30 seconds. As it clears the computer, then when you reattach the negative cable the computer has proper timing, and adjusts it accordingly.

64elko

hello stangski

ok i will try it berfor work and check when i get to work...well let you know what happend....

Rick

64elko

HI Stangski says do the same thing but un hook the battery when done to clear the ECM ,,so i will try it and let you guys know..thank you..

rick

Stangski09

iTrader: (10)

Yes, that's how you set proper base timing.

64elko

hello
yes i knew how to set base timing,,,i reset it and unhooked the battery terminal for 30 seconds and my car is running again ,,like it should... thank you...

Stangski09

iTrader: (10)

She runs good now?
Good Job!

64elko

yes runs strong now,,,thanks