ZR-1 Net Registry Forums - View Single Post - 1990 ZR-1 Hesitation when full Power

Young1 · 01-10-2019

Has the function of the secondaries been tested? I suspect they are not opening smoothly and fully. This can cause a rich condition for lack of air to mix with the fuel. Also the injectors may have been compromised by the coolant that filled the 2 secondaries. The following is an article on Marc Hiebeck's website. http://www.zr1specialist.com/HAT%20W...%20Working.pdf

Also the plug wires and the coils need to be tested. Just because their new doesn't mean they're good. I believe a plenum pull shall be necessary to fully test and diagnose.

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01-10-2019	#2
Young1 Join Date: Sep 2016 Location: Ocala, FL Posts: 870	Re: 1990 ZR-1 Hesitation when full Power Has the function of the secondaries been tested? I suspect they are not opening smoothly and fully. This can cause a rich condition for lack of air to mix with the fuel. Also the injectors may have been compromised by the coolant that filled the 2 secondaries. The following is an article on Marc Hiebeck's website. http://www.zr1specialist.com/HAT%20W...%20Working.pdf Also the plug wires and the coils need to be tested. Just because their new doesn't mean they're good. I believe a plenum pull shall be necessary to fully test and diagnose. Sent from my iPhone using ZR-1 Net Registry __________________ Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much.