Huh, A lot of other searching came up with it should hold for 20 minutes or so.

After yesterdays experiment. Which led to a high pressure of 80 psi, it held that till I released the return line....

Ok, Getting closer to a good running engine. It seems my fuel injectors are leaking down. Symptoms include hard hot starts and the smell of gas in the garage when i come in after work. Whats the...

Well, I ordered a new GP1 adapter and swapped the ecm. Zero problems. I think there was a broken connection somewhere in the other gp1 causing the problem.

Ok, got the Jeep back. Swapped out the ECM with another one. Running a new GP1 adapter with a zif socket. I have a slightly modified AUJP bin. Runs great. No stalling at all. Now onto getting my BLM...

Hey MAC. I do have a ZIF socket with the gp1 adapter. But I was also having problems with that also. Right now my project is at the exhaust shop getting a new exhaust done. Once it comes back, I have...

Sorry, I ment to say,

1. Stock AUJP memcal - Starts and runs
2. Memcal from previous supplier - Starts and runs
3. Moates gp1 - fans only.

The Jeep is off the exhuast shop. I forget what the...

I'm programing it thru TunerPro RT with a burn2. Chip erases ok. Blank check ok. Burn the AUJP(minus VATS) bin ok. Verify burn to buffer, ok. EEProm installed with notch facing out like factory...

Yes sir. Here is what I have been trying.

1. Stock AUJP memcal
2. Memcal from previous supplier
3. Moates gp1

I have programmed a stock aujp bin minus the vats in the socket.

1. fires
2....

I got my AUJP memcal today, so I'm starting with a fresh aujp bin and going from there. Whats also interesting is I was looking around the bin that was on the memcal that started this mess. The flag...

I got my gp1 adapter on Saturday and I'm having a problem with it. Maybe someone can shed some light on this before I email Moates. If I put the memcal directly into the ecm, all is well. Fires up...

I contacted the person I bought this memcal from.

I asked what this memcal was from if he knew. I was told to just hook up the exhaust and it will be fine. So no idea what this is from. So I'm...

84Elky,

Here is what I got.
11893

11894

11895

11896

Thanks for looking at that, 84Elky. I was away for the weekend and just getting to this. So what your saying is the memcal is the issue as its not going into limp mode and not setting code 13? The...

Sorry, didnt realize that. Hows this?

Hi!

Finally got my TPI project running and I'm experiencing random shutdowns. I ran TunerPro RT in record and toward the end of the log, it seems several readings go way outa range then it shuts...

Awesome, Thanks! So once that "magnetic VSS present" is cleared, the "Road Speed Constant" at 0x15 is irrelevant? Or does it need to be set to 2000ppm as done here:
...

Sounds easy enough. Anyone know what pin is for the square wave input?

So I got this straight.

1. Repin the VSS input to ??
2. Re-jumper the drac for my proper multiplier.
3. Change my bin to...

Now I'm wondering. If this will work, but only be close, not right. Would I just be better off running a drac?

EDIT:

Can I even use a drac with the 7730 ecm? It outputs square wave, correct?

I think it is A/C. The sender I have is a DORMAN 917-616 which was used in many GM vehicles from 88 through 05 it looks according to rockauto's site.

Hi all!

Finally getting to the point of hooking all my fuel injection up. I started a previous thread on here about feeding a Jeep speedometer and the tpi ecm with the same sender.
...

I guess no one thought it would prove to be this difficult, huh? Thanks for all this work!

Info overload is right! I'm still reading all this, but ran out of things to contribute. Worst case senario would be I have to run an aftermarket speedometer. I really do appreciate this. :rockon:

Ok, please correct me if I'm wrong.

A Hall Effect sensor is of the square wave type.
The Jeep speedo gets its signal directly from the VSS, so I assume a square wave signal will make it work....

Jeepsandguns,

This sounds like the way I'm going to go as I need a slip yoke eliminator anyhow.

JB Conversions makes a kit for the 231/233 with a GM sender....

That's definitely an option. I was trying to keep it to OEM parts to keep it simple to fix if needed on the road.

I found another option. Maybe someone can tell me if this will work. Install a...