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Agreed, You would need a standalone tranny controller like the FAST, MSD or GM version. However... how do the standalone tranny controllers work? You could run a 4l80e with a controller behind a carbed 5.3 or BBC etc. It would essentially be the same thing either way so maybe it is possible.
Maybe thats how the tranny section is configured in the FItech system. Seems like its could be a possibility. But You would know better as you have the tranny controlled PCM.
I would also think that engine temp is not really needed for tranny operation. Tranny temp matters to the tranny, engine not so much.
TPS and trans output speed sensor for the most part, you do need RPM's for some of the controls
I have used the Compushift trans Controllers on non LS engines, but they cost as much as the 70051, lol
Only the battery side of the starter "heavy red wire". No wires that go to the solenoid to actually turn the engine over. You will have to configure the "start wire" from the key.
No. The main power for the Fitech system is a wire they recommend (actually almost insist) you run to the battery.
You COULD run it to the main battery lug at the starter.
As far as starting duties, your vehicle's starter circuit handles that. The Fitech system knows when you're trying to run it from the IGN wire (powered when the key is in the "on" and "start" positions) and when it sees signal from the cam & crank sensors. Just like the GM PCM, low RPM means you're starting the engine and the ECM does the needed start spark and fuel adjustments.
No. The main power for the Fitech system is a wire they recommend (actually almost insist) you run to the battery.
You COULD run it to the main battery lug at the starter.
As far as starting duties, your vehicle's starter circuit handles that. The Fitech system knows when you're trying to run it from the IGN wire (powered when the key is in the "on" and "start" positions) and when it sees signal from the cam & crank sensors. Just like the GM PCM, low RPM means you're starting the engine and the ECM does the needed start spark and fuel adjustments.
so can I use the ign.tab on my fuse box to pull power for 12v keyed.......and off the topic,can u use the fitec for just spark and timing control and run a carb, or is it strictly efi
so can I use the ign.tab on my fuse box to pull power for 12v keyed.......and off the topic,can u use the fitec for just spark and timing control and run a carb, or is it strictly efi
have my 70050 installed on my 5.3....it will start for a second then just die......it's getting fuel and spark... is there a preset tune I can run for 5.3 24x trans off.....I'm so close I can feel it ....I know it's sumthin stupid anybody got any clues?
Yea mine is running great.....to the point where I built another 5.3 and put it in a '68 c10 in under a month with just my two hand.....(people tend to just get in my way), in the nova it took about 6 months, I guess it's the learning curve. .lol....anyhow I like the fact that since both my builds were n/a the system is user friendly and I don't need a laptop to get it running, if your just doing a simple cammed lsx then I'd say it's a great buy!!! I'd post a video but it says cannot post mp3pics nonsense
Only the battery side of the starter "heavy red wire". No wires that go to the solenoid to actually turn the engine over. You will have to configure the "start wire" from the key.
I am putting the 500 hp kit on my 5.3l and am confused as to what the 2 red wires with the post connectors are for next to the crank sensor. They say starter but where do they go? Also any pictures or insight as to the best way to route this wiring harness?
Jack, on page 8 in the installation manual, the red wires (#2) go to the battery terminal on the starter. OR you can connect it directly to the positive lug on the battery.
Also on page 8, the red wire (#4) goes to any wire in your car that becomes live when the ignition key is on or when cranking the engine. When the ignition key is off, this wire should be dead.
09-06-2017, 09:05 AM
