Question about Chevrolet Silverado
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Posted on Jan 02, 2017
P0300 maens random multiple cylinder misfire.
When was the last time the car was tuned.
Check plugs and plug leads are O.K
also check that fuel cap is on tight.
Posted on Oct 15, 2008
Information courtesy of http://obd-codes.com
A code P0304 may mean that one or more of the following has happened:
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
Hope this helps with your problem. Best of luck.
Posted on May 21, 2009
p0300 is a random misfire. A scanner will need to tell the primary cyls that have problems. A (qualified) repair shop will need to check it. Could be from vac leaks, to fuel pressure, to spark problems????/
Posted on Dec 16, 2009
Posted on Jan 31, 2010
SOURCE: po 102 maf or vaf
p0102 sounds like a dirty maf sensor. go to any auto parts store and buy a can of maf sensor spray to clean it out. follow directions on can. you can use electrcal cleaner also.like from radio shack.
Posted on Sep 17, 2010
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