How do you know if your ECM is TBI or TPI?
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Junior Member
Joined: Aug 2008
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How do you know if your ECM is TBI or TPI?
They both look the same and I got one from somebody who says its for a 90-92 305 TPI. How can I be sure. The only thing the box says is;
REMANUFACTURED BY GM CORP.
SERVICE NO. 16196344
Then there is a bar code with the following number underneath it;
*866344WZ33010418*
Other than that. it has 2 black plug outlets and one yellow plug outlet.
REMANUFACTURED BY GM CORP.
SERVICE NO. 16196344
Then there is a bar code with the following number underneath it;
*866344WZ33010418*
Other than that. it has 2 black plug outlets and one yellow plug outlet.
Senior Member
Joined: Aug 2005
Posts: 615
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From: Beautiful Tunnel Hill Georgia
Car: 67 Firebird Convertible
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.55
Re: How do you know if your ECM is TBI or TPI?
They both look the same and I got one from somebody who says its for a 90-92 305 TPI. How can I be sure. The only thing the box says is;
REMANUFACTURED BY GM CORP.
SERVICE NO. 16196344
Then there is a bar code with the following number underneath it;
*866344WZ33010418*
Other than that. it has 2 black plug outlets and one yellow plug outlet.
REMANUFACTURED BY GM CORP.
SERVICE NO. 16196344
Then there is a bar code with the following number underneath it;
*866344WZ33010418*
Other than that. it has 2 black plug outlets and one yellow plug outlet.
That same ecu was in lots of other un-related TPI cars, so the eprom will be different.
You can also use 1227730 ecu, but again, exchange the eprom inside.
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