Question about 1992 Hyundai Excel
I had a similar problem with my 1995 Sonata... turns out, the coolant temperature sensor had gone bad and was telling the ECU (Engine Control Unit) that the engine coolant temperature was at minus (-) 40 degrees. The ECU then INCREASED the fuel to air ratio and the engine wouldn't start because the ACTUAL temperature was like 195 degrees F. - same as flooding the engine with excess fuel. There's also a MAF (Mass Air Flow) sensor which could be malfunctioning (telling the ECU that LESS air is coming in than ACTUALLY is .. OR the REVERSE). It seems to me your hyundai mechanic (supposidly TECHNICIAN) isn't a technician/mechanic at all.... sorry,, forgive me. I'm a 'PLATINUM' certified Hyundai Tech... The diagnostic procedure for solving your problem is exact and precise... he/she doesn't know what he/she is doing. Oh, there's also a possibility the TPS (Throttle Position Sensor) may be contributing to the problem. The 30 mins to 1 hr delay points to the coolant temp sensor.
Posted on May 31, 2009
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Posted on Jan 02, 2017
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