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ECU and overheating
Sent to Car Experts August 12 06:16 AM

I have a 1999 Nissan Maxima. It failed inspection because of a knock sensor and speed sensor code. The sensors were changed. The check engine light did not clear. The car now overheats when at high RPM or over 65mph. The speed sensor code still shows up, along with a new code for the EVAP canister. Why is the car overheating after changing the thermostat, and a flush. Did they somehow ruin the engine? How can I pass the car for inspection ? The fans come on to cool radiator. Ac and heat work. does not overheat while idleing in park. please email me at XXXXX@XXXXXX.XXX

 

Optional Information:
1999 Nissan maxima 3.0

Already Tried:
changed knock and speed sensor, thermostst and fradiator flush

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Answer
August 12 7:06 AM (50 minutes and 34 seconds later)
         
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32dmadden -- Auto Repair Shop Owner -- 97% Positive Feedback on 413 Car Accepts
A.S.E. Certified Master Technician 32 yrs. Auto Repair Experience
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August 12 7:14 AM (7 minutes and 31 seconds later)
         
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32dmadden -- Auto Repair Shop Owner -- 97% Positive Feedback on 413 Car Accepts
A.S.E. Certified Master Technician 32 yrs. Auto Repair Experience
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