Hi, I'm having trouble setting the idle speed on a recently transplanted 350 Chevy crate motor. I'm using an old TBI system. Following a procedure I found online, I jump the A&B terminals on the ALDL...

Hi, I'm having trouble setting the idle speed on a recently transplanted 350 Chevy crate motor. I'm using an old TBI system. Following a procedure I found online, I jump the A&B terminals on the ALDL...

Hi, I'm having trouble setting the idle speed on a recently transplanted 350 Chevy crate motor. I'm using an old TBI system. Following a procedure I found online, I jump the A&B terminals on the ALDL...

Dave, thanks for the file. What can I do with it in TunerPro RT before I have my engine operating in the truck? Is there anything I can do to help me learn the functionality of the software?

Dave, Thanks for the link. The cable illustrated is pretty much the same as what I have from the first time I installed TBI. I downloaded RT last night as well and kicked some bucks into the kitty. I...

Hi, I just downloaded the latest version of TunerPro,I'm not sure if I should have downloaded RT.I also found a connector... it has an ALDL on one end a short (2") cable and then a little box with a...

Good afternoon,
I was looking through this site last night. I was saddened to learn that Mark had passed away. He was a great help to me when I first got into TBI.

Tom

In the title of my thread, I was advising you guys to Duck because I'm back

Hi Guys,

Thanks for the encouragement. If the truck runs and drives, I hoping to somehow get a chip made for it. I believe I have an old version of Tuner Port RT on my laptop. I vaguely recall...

Some of you guys are probably still trying to forget what a PITA I was back in 2013 when I first started messing with my TBI 4.3 in my '40 Ford Pickup. Well 9 years and 30 thousand miles later, I'm...

Hi Guys, I don't get back to Gearhead too much, and I know you all have nothing better to do than hang out and hope I'll post. I have been driving the truck for a few hundred miles now since I pushed...

yeah, I guess I wasn't clear... 1989 GM Safari (Astro) Van 4.3...take it out of one vehicle with the ECM and bolt it into another. The differences I quickly learned were fuel pressure, even though...

No, it's just a 1 wire 02 sensor

Its a completely stock PROM that came out of the Astro van I got the engine out of. Forcing the ECM to operate outside of it's programming is exactly what I'm trying to do and from what I understand...

Just when you guys had thought I had dried up and blown away, I'm back. I saw the thread taking a different direction and that made me feel a little better about nagging you guys with my problems. It...

Hello all, I have been away from the board for a bit. Just reporting back that the solenoid fix is not reliable. I'm guessing it has something to do with when the ECM looks at the TPS voltage for...

Good observation Fast 355 but that's part of the plan! My problem was that even though I had a pretty good idle in park, when the engine loaded by putting it in drive, the vibration or should I say...

Needless to say I hit the sack somewhat defeated but hopefully optimistic for a fix. The next morning I fired the truck up to head to church and it ran the way I expected it to. Fast idle when cold,...

Well I need to pat myself on the back for doing a great job on the idle stop solenoid install. But have to give an even bigger pat to the General, whos' little '747 has outsmarted me again.

What...

According to the information you just gave me, the engine is idling exactly where it should for a stock configuration. I had Mark make a new PROM because I wanted a higher idle speed. My 4.3 is a pre...

This is an interesting concept. The only thing about it is that it would seem to let the engine idle with 0 IAC counts, which I always thought from what I have read is a NO-NO. Something about the...

I think I used the term "manual" to refer to more than one book. The painless manual tells how to set the timing but the actual spec came from some other book I had.

I set the timing to 0...

It's been a few weeks since I last posted. Eagle Mark said that the speed control on the ECM that I'm using is not too precise and that another bump in the idle speed would be in order. That got me...

EagleMark, do you need me to mail the other chip to you?

Lionel, I'm not having a problem with a high idle speed, the idle is too low. Right now the IAC numbers are around 12 in park and a little higher in drive. From what I have observed, I want to have...