The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

About as confused as my ecu

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Simonsaysr1

Proven Member
135
11
Jan 30, 2016
Rocky mount, North Carolina
So I finally got my 95gst running. I finally fixed the boost leaks and ran a blt on it at 25psi and absolutely no pressure leaking (water /soap under pressure method) and I get no hissing or bubbles. So when I am driving it idles fairly lean at 14.5 and jumps to 16 for a millisecond and floats around the mid 14 range occasionally dipping into 13.5ish . My idle is as good as it's going to get for now 1k to 850 rpms. I tested the resistance in the coils of the isc and it is definitely bad (all ohm to .3 with the exception of 3-4 coil)had to adjust the biss , I know I got to readjust the biss after isc replacement. Could this be the culprit. Or could it be a bad fiav along with it considering its a bypass for the TB. The condition is fairly repetitive in the way it acts. Lean under vacuum rich under boost(wot). Almost exactly like a boost leak. I got octanium booster in the fuel to reduce the knock by increasing my octane. (Problem existed before I increased the octane)It has a smooth sluggish acceleration but jumps when I get the A/F ratio to register in the 16(obviously pretty lean) . Im able to build boost to where it's set in ecmlink v3. It registered different A/F depending on your rpms at a certain speeds. Now I've heard you can block off the fiav and isc (both unreliable devices) and get a 3g maf and compensate for the lack of those two by adjusting ecm link. Can anyone tell me where to find your tps and isc positions in ecm link. I tried looking all over ecmlink and don't seem to see it. Can I block both off and keep my 2g maf. I have no power steering and no ac. I don't mind warming it up on a cold start . It's only cold for a few months here in NC
 
Post a log so we can see what's up and what your settings are like. You want the car to idle around 14.7, and it's setup to run rich in boost. Also would really help to fill out your profile so we can see what your setup is. And that octane booster is a joke LOL waste of money bro. It only raises the rating by .1 not 1 point like they claim. So if you have 91 oct and put that stuff in you get like 91.1-5 LOL. Also to see the values you want you have to add them to captured and displayed values. Start reading all you can here http://www.ecmtuning.com/wiki/, it's all there. Start off with basic setup, then idle, then cruise, then wot. Don't skip around do it how it says to. The best way we can help you is you helping us. Fill out the mods profile and post a log.
 
Last edited:
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top