my 305 tbi. Spun a bearing. I replaced with a 350 tbi from truck. I don’t now if I repin truck computer or change chips. In old computer. I have researched. And I’m no good at it. Thanks in advance.

350 tbi 700 auto 2000 stall long tube headers open exhaust open intake. Stock cam heads.

I have a 1227747 ecu asdu chip and a 1228746 ecu (original ecu)

can i I repin for 747 ecu. Or do I have to find a chip for the 746 ecu

I did. I’m getting a code 22. TPS sensor. And with stock 305 tbi ecu. Runs like crap. But even worse with the 747 ecu

It has to be bad ecu and or tps. I’m looking at wiring schematics. This computer should work.

thanks that’s the one lol. I’m looking at my local jy. If not there I’m buying. Yes nothing from I think b13. 305 computer runs the car not to bad no ses light.

I got all mechanical issues solved. No ses. I have the 7747 ecu with the asdu chip. What I have is a 350 tbi all stock I believe I using ac. I have a 700r4 with 2000 stall. I installed a gu6 g80 rearend out of a 2001. Open headers into a cherry Bomb. I changed fuel pump. I changed to 14 psi spring.


the question is I need to tune. What do I buy. It’s 2018. Most post on tuning is from 2005. I can’t read no more. What should I buy. Do I get someone else to tune. So I have a running car. It should be easier to tune. Do I have to use a 28 pin. I’m so lost. Any help would be appreciated

You can still buy 2732a proms to reprogram but you would need a pocket programmer.
There is always the dynamic efi ebl system. Or look into moates.net burn 2 and adapter for using eeproms in your ecm.

http://www.moates.net/aldu1-and-cabl....html?cPath=64
http://www.moates.net/burn2-chip-pro....html?cPath=64
http://www.moates.net/g2-memory-adap....html?cPath=64

or you can tune live with a ostrich or apu1
http://www.moates.net/apu1-autoprom-....html?cPath=64
http://www.moates.net/ostrich-20-the....html?cPath=64

I will be ordering the autoprom and g2 chip adaptor. Thanks again Im sure I will have more questions.

What can I do about the speedometer being so off. Since I switch rearend gears. I can’t find much on that. I’m sure it’s here somewhere. So much knowledge here on third gen.

I have sgi 5e. How to wire.

A10 is the vss signal wire.
http://www.dakotadigital.com/pdf/sgi-5c.pdf

I found a wiring diagram for my vss. Do I splice in. Or wire in place of existing vss. Im just confused. Sorry for dumb questions. But I’m not finding much on how to wire. I want cruise and everything to work.

If correction is needed for rear gears hook up the vss signal on the vss output on the sgi.
if no correction is needed it doesn’t matter you could splice the input signal.

I’m running alittle slow. Thanks. I need adjustment so I run from sgi signal to a10

thank you. I will give it a shot. And I will report back.

The vss 4 out buffet was very difficult to find. I had to remove trim piece on passengers side. About knee high. It’s the piece above what you take off to acces ecu. Anyways I ran power wires from radio. Cut purple wire. Striped hooked up the end coming to board to sig in. And other end to out 1 on the sgi board. And just drove and set speedometer. Worked awesome. Thanks everyone. Now to finish my 2 din install.
As far as tuning the ecu. I burnt cable to autoprom from ecu. I must have soldered in adapter wrong. Strange though when I put my 24 pin chip. Back In and car runs fines. Autoprom. Works fine for monitoring. I have put several emails into Moates. With no response. I heard nothing but good things about Moates. I hope they get ahold of me. I will purchase ribbon cable again from him. But I think ribbon was made wrong. From beginning.

Moates emailed back. I was powering laptop at same time as I was trying to emulate. It was explained to me this will back feed voltage or ground. So don’t have laptop plugged in to a/c power. as you emulate.