Overheating problem only with A/C running on '89
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Without a scanner, you can't know if it is pulling timing or not. Sure, if it is totally inop, the ECM will throw a code. So lets take the temperature as an example. In AZ it is 100 degrees but in the middle of a WI winter, it can be 10 below. If the sensor is sending a false reading of 10 below, it is plausible so it might accept it.
Thread Starter
Instructor
Joined: Jun 2013
Posts: 195
Likes: 23
From: Sand Springs OK
Without a scanner, you can't know if it is pulling timing or not. Sure, if it is totally inop, the ECM will throw a code. So lets take the temperature as an example. In AZ it is 100 degrees but in the middle of a WI winter, it can be 10 below. If the sensor is sending a false reading of 10 below, it is plausible so it might accept it.
Last edited by 66509; Feb 27, 2017 at 09:28 PM. Reason: Add
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
My problem with the tune is that you really don't know what you are working with at all. It is all "he said, she said". That thing sounds like it has been jacked with so what it does is anybody's guess. Seeing as how high the compression supposedly is, I really don't like cranking up the timing via the distributor and hoping for the best depending on what your butt dyno says.
I figured.
