MSefi.com read only forum (Jan.15,2018)

Okay, I tested out the entire TPS harness. It all tests out fine, nothing weird or intermittent.

However, when I hook up the sensor, it still reads wild and crazy voltages. I've noticed that if I spend a few minutes stretching the wires in various directions, it behaves normally for about ten ...

Fair enough. I thought that would work, but the last time I tried grounding the pins (couldn't remember which one so I just tried all three one at a time) all three of them triggered a click from the injectors and the MS unit reset.

Incidentally, I also should revise my earlier assertion - the ...

So I've gone through something like five TPS units since I started this project. Keep in mind that with the issues (non MS related) this car has had that keep it off the road, this means that the longest life I got from one was 1000 miles - the rest died after only a few days of testing in the ...

Thanks guys. Should have it dialed in after a few more driving sessions.

Total newb question here.

I'm finally getting ready to properly tune my project (tired of not having any real power thanks to my laughable first "tuning" efforts), but I have no idea where to start with my AFR table. I've got the cruising area of the table pretty well sorted, but it's the upper end ...

Hi guys. This is kind of a silly question given that my engine is already running and I'm finally in the tuning phase. Thing is, I'm still really new to huge portions of tuning theory, so please bear with my ignorance. I did search for this rather extensively but didn't find anything helpful.

I've ...

Why do all of my cries for help relating to this car end in a "boy do I feel dumb"?

I had to replace the injector o-rings because I saw that one was leaking and when I checked the rest, two of them were cracked. Put it all back together, pressurized the system and found a big dripping gas leak on ...

Hi guys. I just got my MS install running yesterday and I have a really annoying issue with my fuel system.

The car was previously Bosch CIS - mechanical fuel injection - so I am re-using the original feed and return lines, as they will support MUCH higher pressure and flow rates than I will ever ...

I'm trying to replace a dual throttle body with two individual throttle bodies - each bank of cylinders has a set of runners and a plenum, and the current manifold has a "W" pipe to bring the plenums together to the existing throttles. I want to remove the W and just run a throttle on the plenum ...

Hi. I'm looking to eventually modify my intake manifold on my car by relocating the throttle bodies to a more optimal location. I'm converting from Bosch K-Jetronic and although the existing system will work to run the car (though mine is still a week or two from running as of this post), I'd like ...