SENTRASER
08-03-2002, 09:36 PM
I think the article about setting your timing on SE-R.net is whats messing us high port guys up. You dont need to turn your car off then disconnect the TPS, you leave it running after you've reved it past 3k 3 times. Then you unplug it, after I did that my timing was ROCK solid! Heres the writeup that helped me!
http://www.b15sentra.net/modules.php?op=modload&name=NS-HowTo&file=index&func=show_ind_cat&id_cat=3#22
I think someone on SE-R.net should be aware of this...
~Ryan
Probedude
08-04-2002, 12:53 AM
I tried the same procedure over the past 2 days and still my base timing bounces around. I agree about the "don't turn off the engine to unplug the TPS" - if I do my 91' will idle at 1600RPM and the timing will be at around 30 degrees!
When you rev'd past 3000 RPM 3X, were you idling at first?
Did you let it idle back down between each rev or just let it drop below 3000?
It seems like I am doing the right thing, when I disconnect the TPS, the engine idles up a bit and then settles down to a 'normal' idle. Still the timing bounces. I wonder if my timing disk is dirty in the distributor.
Dave
SENTRASER
08-04-2002, 01:31 PM
Originally posted by Probedude
I tried the same procedure over the past 2 days and still my base timing bounces around. I agree about the "don't turn off the engine to unplug the TPS" - if I do my 91' will idle at 1600RPM and the timing will be at around 30 degrees!
When you rev'd past 3000 RPM 3X, were you idling at first?
Did you let it idle back down between each rev or just let it drop below 3000?
It seems like I am doing the right thing, when I disconnect the TPS, the engine idles up a bit and then settles down to a 'normal' idle. Still the timing bounces. I wonder if my timing disk is dirty in the distributor.
Dave
You go down to almost 2000 then rev it past 3000 again, 3 times in a row. (Yes, the car was idling first and warmed up)Yeh, my idle would jump to about 1700, then I'd have to put it under some load to make the idle go under 1000. Try replacing your cap/rotor/plugs & wires if this proceedure doesn't work(with the questions I've answered) Hope this helps!
~Ryan