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Old 03-27-2011, 04:00 PM
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questions about controlling 4L60E

I hate to dig up a old thread but I have a few questions about this sticky How To: Using TBI PCM for 4L60E Control.
I've seen this thread posted on several different forums & I'm gonna post on all of them so that I can get as much information as I can.
I have a 94 Chevrolet truck. I built a 383 with vortec heads, roller cam, headers w/true duals, super victor intake, & a 454 throttle body. I have a mail order chip & we are on number 20, still has a bad hesitation on accel, rough idle, ect ect ect..... So I decided to go with the FAST EFI system. The problem is that it will not controll my trans & I do not have the funds to spend another $850.00 for the FAST transmission controller. My questions are this.....

1) Can I use the tps signal from the FAST system to trigger my pcm?
2) Can I use the ect sensor from the FAST system to trigger my pcm?
3) If so do I just splice the signal return wires together for these two sensors?
4) Will my factory tach still work?
5) If not what will I have to make the factory tack work properly?

I'm sure more questions will come later, but for now that is all. Any help will be greatly apprecated? I would like to see alot of discussion so that we can all learn from it.

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Old 03-27-2011, 05:21 PM
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you could just run a holley electric choke carb and get the holley tps sender that mounts to their carbs. You could be set up with that for around 100 bucks after you buy the carb.

http://www.summitracing.com/parts/HLY-534-202/
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Old 03-27-2011, 06:19 PM
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Have you run your questions past the FAST folks yet?
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Old 03-27-2011, 06:46 PM
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QUOTE=Crosley]Have you run your questions past the FAST folks yet?[/QUOTE]

Yea I did & all the guy said was that it would void the warranty. Then he kept trying to sell me their 4l60e controller. I know that it is compatable with their fuel injection system, but I just don't have the extra dollars laying around.
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Old 03-28-2011, 04:34 PM
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Does anyone else have any input on this subject. I know there has to be someone who can shed more light on this.
Another question hit me today. The PCM shifts the trans based on engine load & throttle open percent. Wouldn't the PCM need a MAP signal to tell it engine load? Like when towing or climbing a step hill.
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Old 03-28-2011, 04:50 PM
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I would suggest posting your question at www.thirdgen.org the site is based around chevrolet fuel injection. It is a very good site to ask fuel injection questions.
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