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![]() Join Date: Mar 2023
Location: PA
Posts: 62
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My 90 zr1 started to stall when going from say, 40 to a stop. Turn the it fires right up. I spoke to Hibeck and he said just try and downshift to a stop. I have done that for the last 6 or more months and its been ok. A 2 weeks ago I came to a stop at a very crowed intersection, and someone cut me off and had no time to downshift and it stalled while moving like previously, so I caught it in gear like I have done before except this it stumbled and left me sit in heavy traffic. I pushed it to the side and it would start for 1 second and stop. I tried a few times and the same thing, so I called a tow service. About 45 minutes passed he showed up and the car started. I had him tow me to a friend's shop who has a zr1 and works on some. He had it a few days tested everything. No codes either. He changed out the fuel filter and tore it apart and it was ok so He installed a new one. The PO replaced everything as he was a GM wrench. Both pumps are new so is most every relay and hose including the starter. I had a spare NOS idle control valve so I removed the old one cleaned the area as there was some carbon installed a new one and I tried to make it stall and I couldn't. I thought I had it and the last stop coming home it did again. I could live with that as long as I never get the no start again. I also checked the throttle plate, and it was super clean. Any suggestions?
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