Quote:
Originally Posted by rfmaster
Did any one bother to perform a simple fuel pressure check. 9/10 TBI 'stump on the gas' problems can be traced to a low fuel pressure.
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The fuel pump, filter, tank and gas were all replaced. Fuel pressure is fine, but we did have rust in tank at one point. Mechanic pulled up the TBI and says injectors are shooting smooth and consistent.
This last mechanic checked that the IAC (Idle Air Control) sensor was clean and will check the gas filter again.
My check engine code has alwas read error 34. Map Sensor voltage low.
We are thinking of changing out the Throtlle body Position Sensor (TPS).
By the way,
can somebody confirm exactly where the TPS and IAC value and MAP sensors are exactly on my truck on this grid?
Many Thanks!
