I have searched til I am getting a headache. I have the wiring diagrams but it just doesn't tell me what I need - I think. I need the pinouts for the white plug next to the ECM that goes under the dash and the pinout for the engine harness firewall plug next to the brake booster

I have a complete donor 1989 MAF TPI IROC.

Going in a 1991 Firebird with 305 TBI.

I have both wiring harnesses and ECMs. On the white connector next to the ECM I have no idea what the wires are but they are different in 3 or 4 wires - not just in pinout but in color and number of wires.

On the firewall connector the wires are also diff. The firebird had the windshield wipers in the body harness and the 89 had it in the engine harness, etc and where the WSW wires were there are other wires in the 89.

I'm thinking if I get these two connectors pinouts correct that will be most of what I need to do. (maybe a little on the body harness - maybe not).

DOes anyone know where I can get these pinouts?

 

How much does it cost to join ALLDATA.com?

 

I believe the first subscription is $25 and addtl's are $15

I have the alldata for the TBI car, if you get the alldata on the 89, i'll help ya out on the other end.

 

If that is all it costs I'll get it ASAP. cheaper than buying the manuals. If it was more I would have bought the manuals.

 

Looked at the sample cars and the connectors had all the pins marked!

SO, I got a sub for both the 89 and the 91 and the only connectors marked is the ECM. No other connectors listed. Needless to say I'm not happy. That was the only reason I got the sub.

I will be calling them tomorrow.

 

You arent looking in the right spot, there are pinouts of the C100 and C207 connector, they arent exactly perfect, you have to know how to use all of the diagrams together to figure it all out.

 

I looked closer and found close to what you are talking about - I found a pinout of what looks like the aldl. I don't mind tracing wires to find the pinouts.

I'm still looking for the C100 and C207. I don't have time to go through everything this morning - gotta go to work.

Thanks for the numbers BTW. I thought that might be them, but having a confirmation is nice.

You gotta admit though that the samples have really nice pinouts...