260ZRED Posted July 10, 2005 Share Posted July 10, 2005 Car drives like a dream when the temperatures are under 180-190. I just cleaned every connector on the car. Idles smoothly, a joy to drive, etc.. BUT.... As soon as I drive it for 5-10 mionutes and temps approach about 180-190 I get terrible hesitation and stumbling. No smoke/black soot coming out of exhaust... Fuel pressure stays @ around 30-35 psi (running stock ZXT fuel pump for now) Could it be vapor lock? I felt the fuel lines and they are too hot to keep a hand on them - they're boiling! Could it be the water temp sensor? Any other ideas? Please help!! Quote Link to comment Share on other sites More sharing options...
Sparks280zt Posted July 10, 2005 Share Posted July 10, 2005 water temp sensor, same exact thing happened to me in my 77. Quote Link to comment Share on other sites More sharing options...
Sean 83ZXT Posted July 11, 2005 Share Posted July 11, 2005 Don't forget to spray the ECU connections with Electrical Contact Cleaner. Many people have had this problem before. Quote Link to comment Share on other sites More sharing options...
260ZRED Posted July 11, 2005 Author Share Posted July 11, 2005 yeah I forgot to do the ecu connector's.. Going to replace the water temp sensor and do the above..maybe that'll fix her! Quote Link to comment Share on other sites More sharing options...
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