I did an incredibly stupid thing the other day and pulled a plug on my ecm without disconnecting the battery. Now it wont crank and i checked all the fuses and relays. Did i burn up the computer?

 

Why did you pull the plug?

how did you test your fuses (using meter or visual)?

check fuses under hood too?

 

Did you pull more than one connector off? I don't think what you describe would fry anything. I think there are two plugs that if you get them mixed up it will plug in but not start if you do so, so is it possible you did that?

Why were you unhooking it anyway?

 

there are 3 plugs and i believe they are keyed.. i would disconnect the battery and reset everything. make sure the plugs are all seated.

 

Give us a little more info.
Things like, interior lights come on, clicking noises, checked battery voltage, dash indicator (anti theft) etc
What else were you doing under the hood that day?

 

Did you resolve your issue? I'm pretty sure you can get the two 70 pin plugs mixed up and if so it won't start that way...one is for the body and one is for the engine. The smaller plug is for the transmission I think
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I just had my computer out and don't think they are interchangeable. The look the same, but just slightly different.

 

I tend to believe you as I think they would make it impossible to hook them up wrong, the only reason I throw it out there is because I remember someone in the past saying they hooked 2 plugs up backwards.. Then yesterday when I was looking at some pinouts the 2 connectors have the exact same # of pins, but the diagram doesnt really show if there are keyways that differentiate the two.

 

It’s been a few days since you last posted. Have you resolved this issue and if so please post the solution? Feedback is important so that we all learn solution paths to these issues.

Thanks in advance