ZR-1 Net Registry Forums - View Single Post - 1989 ZR-1 Pilot #004 Thread

zedrone · 02-01-2010

Hi All,

Thanks for the invite Tyler.

All of the '86- newer cars would have come with an 8k tach from the factory.

To start the car, you will need to bypass the VATS module *and* reprogram the ECM to not look for the VATS signal. The module behind the breadbox activates the fuel pump and allows the starter to engage, the ECM won't pulse the injectors unless its getting the correct information from the car. We never figured out how this interface worked on the '86, so we went around it.

Ed

02-01-2010	#174
zedrone Join Date: Feb 2010 Location: NC Posts: 35	Re: 1989 ZR-1 Pilot #004 Thread Hi All, Thanks for the invite Tyler. All of the '86- newer cars would have come with an 8k tach from the factory. To start the car, you will need to bypass the VATS module and reprogram the ECM to not look for the VATS signal. The module behind the breadbox activates the fuel pump and allows the starter to engage, the ECM won't pulse the injectors unless its getting the correct information from the car. We never figured out how this interface worked on the '86, so we went around it. Ed