Question about Cars & Trucks
PO316 Misfire first 1000 revolutions
Your going to have more than that, if you look at scan tool data
A night mare to the novice I would guess
No tune-ups in the last 25 years or more
All you can do is spark plugs & on a very few clean or replace
a distributor cap
Computers have been doing the so called tuning for the last 35
years since 1981 & 1983 for ford & chry
Could be intake gaskets (vacuum leak)
PCV System Leak (Vacuum Leak)
Wrong Spark Plugs or Gap
Have to look at cylinder misfire count-if that even helps
Have to look at all obd codes, in all modules
Have to see if all Emission Monitors ran
Have to look at Fuel Trim to see if it trying to correct for
a rich or lean condition
As with ALL folks that come here, the vehicle is a secret
At least we have a motor
What did you do, other than spark plugs & were they replaced
because of a problem?
What year vehicle
If it is real old & had misfires for along time, then the exhaust
converter will be another issue AFTER you get rid of the,misfires
Wires in correctly
Posted on Nov 10, 2014
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Posted on Jan 02, 2017
A misfire can be cause by several factors. here are a list of things to check check spark plug on that cylinder and check coil and wiring for coil. check cylinder compression on all cylinders if one cylinder is less than 10 psi different from the others that can cause a miss, last but not least check injector pulse using a noid light for injector pulse if pulse is good then injector is bad replace and that should solve your problem. Good luck and contact if you need more help. Thanks for using FIX YA
Posted on May 12, 2009
A code P0171 may mean that one or more of the following has happened:
Posted on Jul 15, 2009
P0304 is Cylinder 4-misfire detected-probable cause is as follows. Engine mechanical fault, wiring, ignition/fuel system, injector, ECT/MAF sensor, ECM
P0316 Misfire detected during startup-first 1000 revolutions- probable cause is as follows-Engine mechanical fault, wiring, ignition/fuel system, injector
Posted on Aug 18, 2009
SOURCE: trouble codes
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.
i've heard of the 5.4l's with the "cop" set up devolping moisture under a coil. if it hasn't again that is most likely the problem. to prevent this you could remove each coil and apply dielectric grease to the tops of the plugs.
Posted on Feb 18, 2010
A code P0301 may mean that one or more of the following has happened:
Posted on Feb 27, 2011
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