Ignition Advance Problem
Jon Pennington
cowboydren@b15sentra.net
Wed, 3 Apr 2002 12:24:14 -0600
(Posted on KCSERCA) I met a guy with a 200SX (vinyl taillight covers,
Arospeed coilovers, knappy blue foglights) the other day. He had a JWT
POP, and we layed my timing light down just for fun. I did the Kojima
timing method (warm engine, 3k RPM 3x, disconnect TPS), and hit his
timing marks; it looked like his pin was *over* the 20* mark.
Here's what I'm thinking; somebody did the timing mod, but screwed up,
going too far. IIRC, if the ECU detects knock, it dials back 5*, right?
So if he's at 21* of mechanical advance, the ECU would be pulling him
back to 15-16*, right? He already runs premium fuel, but he's never
heard knock, never felt a power drop, never felt a power surge, and the
car seems to run fine.
I was tempted to go back and dial him back to 19*, but I had to leave
for some reason, and when I came back, he was gone. I'm soliciting your
advice for the next time I meet up with that kid...
--
-=|JP|=- Need a good geek? I'm unemployed!
'01 B15 SE/PP | http://www.cardomain.com/id/cowboydren/ | <//><
'95 SL2 Auto | cowboydren @ b15sentra . net |