ZR-1 Net Registry Forums - View Single Post - car pulsates under load when in power mode

tccrab · 04-13-2011

From Marc Haibec's website:

http://zr1specialist.com/HAT%20Web/a...Resistance.htm

A word of caution, DO NOT force your volt meter probe leads into the female pins of the ECM plug.
Save yourself the agony that only took me 2 years to diagnose and repair on my ZR-1.
Shoving the probe leads into the pins serves to stretch out the female connector and then they won't make good contact with the male pins in the ECM.
Causes all kinds of mysterious intermittent problems.

Back-probe the pins instead, simply pull the rubber plugs out with needle nosed pliers.
When you look carefully at the ECM plug you will see what I mean.

Good luck!!!

TomC
'Crabs

04-13-2011	#7
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,663	Re: car pulsates under load when in power mode From Marc Haibec's website: http://zr1specialist.com/HAT%20Web/a...Resistance.htm A word of caution, DO NOT force your volt meter probe leads into the female pins of the ECM plug. Save yourself the agony that only took me 2 years to diagnose and repair on my ZR-1. Shoving the probe leads into the pins serves to stretch out the female connector and then they won't make good contact with the male pins in the ECM. Causes all kinds of mysterious intermittent problems. Back-probe the pins instead, simply pull the rubber plugs out with needle nosed pliers. When you look carefully at the ECM plug you will see what I mean. Good luck!!! TomC 'Crabs