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Posted on Jan 02, 2017
SOURCE: cracked pvc hose
Does the engine run rough when you first start it up in the morning and then smooth out as it warms up? If so, these engines have also had a problem with the intake manifold seals leaking after the vehicle accumulates high miles. The other situation that I have come across is low fuel pressure. If the fuel pump does not have the right pressure, or if the fuel filter is blocked, this can cause the engine to run lean and set those codes. But my first guess is that there is a vacuum leak somewhere in the system.
Posted on May 26, 2008
SOURCE: vacuum hose busted
Sounds like the computer system readjusted it self to the specific air measurements that the busted hose was allowing in to the engine.(This is only relevant if you have a 1987-up) turn off the car, remove the battery cables, and let sit for 45 min, this is ample time to reset the computer memory. Reattatch cables and start. It may run rough for a few miles but if after say 50 miles of driving, if it still wont idle, than you may need to replace sensors. (MAF, intake sensors, O2 sensors, etc..)
Posted on Aug 03, 2008
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