Me78569

The PIDS just are not there. take Boost for example, I read it from the canbus string in a PNG. It's where it should be and makes sense, BUT say baro, which is in the same PNG is not reported. The slot is there but no info is reported to it.

you can't read abs via the OBD bus that obdlinks uses. need to read it VIA ccd, which needs special coding.

our trucks typically idle at between 11* and 13* then at WOT high revs the ecm will ask for ~25-26* of timing. if the engine is rotating faster you need to inject fuel sooner to give it enough time before TDC to get full combustion. Fuel pressure to the injection pump won't change in a perfect world. the injection pressure is purely related to the vp44 vane pump.

Without knowing how the EZ adds fuel and timing there are a lot of things that could be going on. I would just keep revs up a bit more and see if your issue goes away.

Searching through the code to see why it suddenly goes to a fueling message of 1....it shouldn't but yea. figured it out I think. the code was set to only ignore the ecm if TPS was always > = the tps reading from a few mills ago. I am guessing the ecm reported 99% TPS for a split second and the quad jumped back to oem fueling. I adjusted the tune to be tps > last_tps - 5% so you can let up slightly.

Thanks for testing that @TFaoro

I am pretty sure that boost is reported via the SAE standard for early trucks. It would be report in KPA, taking atmospheric into consideration. (kpa * 2 ) /7

This is how I feel right now. I have figure out how to hold fueling beyond redline on canbus tuning.... this is on lvl 3 AKA no wiretap, rev limit set at 3500 rpm. Fueling was only about %25 of what it could have been as I didn't want to have something bad happen at full fueling. I am gonna spruce the code up, but I am guessing that a lot of guys will gain a lot more meat over 3200 rpm should they choose to use it.

Yep that are exactly 0 new ecms out there. You need to get one rebuilt or get one out of a running truck. I would suggest the rebuild route but ensure you get a good warranty.

sub .05 ac is ok

If you don't have the quad high idle enabled then the quad isn't do anything at idle state. TPS must be above 0% for the quad to send fueling commands or it has to have high idle enabled. If you have factory high idle enabled I would HIGHLY suggest not using the Quadzilla high idle as they do not play nice together.

It could, but I wouldn't think so.

Yes, it just bumps fueling. I will look into it to see if anything sticks out.

Sounds like an ECM to me, but I would go through this first. Return the truck back to stock electrically, pull out the edge etc. Get some dielectric grease and clean and apply EVERY plug under the hood with it. Cycle every plug a few times to ensure good connections. Clean EVERY ground connection in the engine bay.

yea don't mix up your min' and maxes. I am surprised you didn't have more issues.

Mostly photoshop. I think there is almost no proof that it moves on it's own power

Took an injector thread to get you to post? haha all kidding aside, I apperciate your work on promoting the Quad Truthfully for what it can do. However we do try to keep the rift raft down. We like to see less CF / facebook garbage and more, how does the CCD bus actually work talk.

that's way to much drain, I would start looking for the circuit that is causing issues. Any battery tender should be up to the task assuming there isn't an unnormal drain.

@TFaoro I should have taped the convo last night when you said you really liked the timing and you were %100 happy and I don't ever need to code anything again Or at least thats what I heard.

Awesome news, I hope you find an easier way to make money compared to landscape

why do you hate me? all your ideas turn out great though, so I am all ears. as to boost I dunno really, I will look into it more once things warm up and we know one way or another than it is x, y, or z

Now if you really want to get confused about it, 2 trucks at sea level and 7000' both reported the same map reading offset, of "11" why 11? I dunno.

Issue is that the quad is reading PSI from the ecm directly at PSI levels below 16psi. 4 months ago we did testing and found the current calculation shows 0 psi at idle, then a few months ago, nothing changed, all late trucks are now reading 2 psi at idle... I can very easily adjust the calc to make it 0 at idle again, but I am betting it will then be a delayed psi reading like before the change. What this means is the ecm is seeing psi in a manner that is causing it to report psi differently now. The dipricol gauge is self contained and taking outside changes into consideration when reporting boost.

Yep true oil pressure gauge is your only choice. once your sensor triggers "oil pressure" that's all you know.

My truck doesn't show increased boost though, it's only on late model trucks. The sensor on the late trucks don't seem to account for baro. how does one resolve that if there is no baro sensor haha?