86Chicken

I have the 1227302 chip in my 86 2.8L 'Bird. The 1226870 chip was also used that year. I found a 1226870 ECM in the junkyard this weekend from an 85 2.8L Camaro.

The question is: Can I just plug the 870 in place of the 302? The connectors are the same and it came from the same engine type. Also the 870 was used in 86 on my engine (VIN S). The only difference in the cars was the the tranny(auto vs. 5sp).

I am guessing that it would work but would like to hear from someone who knows.

The reason for this is that I haven't seen anyone that has the def files for he 302 and I would like to try my hand at chip programming.

Thanks much!
Dale

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1986 FireBird
2.8L MPFI
Gutted Cat, No muffler (Sweet Sound)
Was 700-R4 --> Now T5

Grumpy

I show in 86 Vin S using at 6870 or 7302, Then the Vin W uses 6870, 7302, or 7730.

The trouble is that I know of no hacs for the 6 cyl 6870 or 7302.
If you go with the 730 and use the 8D hac it has cylinder select etc so it with work could be adapted.

86Chicken

So you are saying that the easiest way for me to start programming my own chips is to re-wire te car for the 7730 SD system?

Sounds like too much effort for too little gain on a 15 yr old V6. I get about 30mpg now, could this be improved significantly.I know that improvements take a long time to make, but is it possible?

Thanks for the help!
Dale

Grumpy

There are no editors I know of for what you have. So unless you reverse engineer the code, your at the corner of walk and don't walk.
I do chips because their fun, and a challenge, what makes it worth while to you is up to you. There is always the possibility that there are no gains to be made. Thou, learning the process can come into play further down the road. EFI is here to stay.