P0300 after boss intake install, need some help
10-17-2016, 05:15 PM
#1
Senior Member
Thread Starter
P0300 after boss intake install, need some help
Installed the boss intake manifold about a week ago and loaded the new tune as well. About once a day the truck will sputter then I'll get the check engine light. I did notice on my live wire device the long term fuel trim is at about 1.17-1.20 which I believe indicates a lean condition. I have changed spark plugs and checked for vacuum leaks so far. My air filter is pretty dirty so I ordered the a&about oil and cleaner kit but I'm sure that's not the issue. Any help is greatly appreciated.
10-18-2016, 06:11 PM
#3
Need to run a power balance test on it to pinpoint what cylinder is misfiring. Probably a bad coil or spark plug with a cracked ceramic insulator.
Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
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Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
.
10-18-2016, 08:07 PM
#4
Senior Member
Thread Starter
Need to run a power balance test on it to pinpoint what cylinder is misfiring. Probably a bad coil or spark plug with a cracked ceramic insulator.
Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
.
Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
.
Sorry 2013
10-19-2016, 09:13 AM
#5
Senior Member
Thread Starter
Need to run a power balance test on it to pinpoint what cylinder is misfiring. Probably a bad coil or spark plug with a cracked ceramic insulator.
Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
.
Would also help if you posted what engine and year for future posts, I'm assuming you have a 5.0 somewhere in the 2011-2014 range.
.