1999 Pontiac Bonneville Repair Question
Mileage: 13,200 miles.
Car will stay running for about 10 minutes and then die.
Answer
Does it start back up without a problem or is it refusing at times-
It starts right back up without a problem.
Check the fuel pressure fuel pump could be failing when it heats up it breaks-then it repeats when cool for a bit-
will try will let you know if it works thanks
Any word on this yet Richard? If not, try checking fuel pressure and spark when the problem occurs.
With fuel pressure gauge tester,pressure was about 42,but when I tap on mass air flow sensor car died right away. Think car has about two problems. Maybe fuel injectors?
It sounds like either the mass airflow sensor is either faulty or improperly plugged in(loose wires or connectors).
42 PSI sounds like it's in the ballpark.
Check the wiring from the coil(s) to the ECU and grounds.