IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: gordyzx9r on June 26 2005, 02:24:14 AM

Title: What does the ECM consist of?
Post by: gordyzx9r on June 26 2005, 02:24:14 AM

What else makes up the ECM, and what does it do?

ECM
Calpak?
Eprom?
Chip?

Title: Re: What does the ECM consist of?
Post by: Recklessrob on June 29 2005, 01:03:26 PM

The Eprom is the chip. There is a whole bunch of other stuff in there too.
Why do you ask ?
 :psix;

Title: What does the ECM consist of?
Post by: 87natty on June 29 2005, 03:01:04 PM

The actual ECM is the main body. Calpak is the limp home mode that the car goes into when sensors fail. All the wires going into the ecm are the main engine sensors, like you TPS, IAC, MAF, etc. All of your gauges are not at all related to the ECM, which is why you have 3 coolant sensors. 2 for the computer and 1 for the idiot light. Your MAT sensor is used for boost gauge.

So your whole system consists of the sensors, the harness they're atttached to and then your ECU case. Within that case you have your E-PROM (erasable - programmable read-only memory) what normal people call a chip. And as you know these are interchangable .