ECM swap on hot air

[Troy]

I have a 84 gn and I was swapping to 87 computer and Tt chip if you can get it to start it idles at about 500 rpm and dies when you touch the throttle. I put back old ECM and starts right up. Any ideas?

 

[O SO LO]

http://www.gnttype.org/techarea/ecmsensors/8487ecm.html

 

[NorCalTurbos]

I started mine with a stock 87 chip just to get it going the only thing I noticed is that thaw mat sensor and translator/maf is a necessity mine are coming soon stay in touch I'll let you know the results

 

[Brad_H]

I have a 84 gn and I was swapping to 87 computer and Tt chip if you can get it to start it idles at about 500 rpm and dies when you touch the throttle. I put back old ECM and starts right up. Any ideas?

Do you have a 87 maf translator or maf pro

 

[Toby_Goodmk]

Troy, in your SIG, you need to list the items that you have done to your car so we dont ask questions like this:

As a member pointed out up above...did you replace the MAF, and do a MAF translator?
what are your other modifications to the fuels, electrical, etc.....

 

[Troy]

Do you have a 87 maf translator or maf pro

No it's the 84 maf I was reading some posts that said it would work except in cold weather.if I get an 87 maf do I need a translator ? The car is stock except type II gm ignition module and Casper adapter with hot wire (what a difference that made in starting) the chip I have for the 87 ECM is for 60# injectors wich mine are not!

 

[NorCalTurbos]

You need to know your injector size and match the chip also I would change the maf and add the mat sensor. With the ECM upgrade don't stop there keep reading the posts on this there are many trust me you'll get it. Good luck