[NOT A 45]

Originally Posted by Delos

getting codes p2177 and p2179. my rail fuel pressure is over 500psi and when I'm driving my short term fuel goes into the low negatives. I keep getting fuel into my oil (about to drip off the dip stick).



I've replaced:

• All 6 spark plugs
• All 6 fuel injectors
• 1 ignition coil (cylinder 1)
• New Throttle body
• New Intake Manifold Gasket
• New PCV Valve and hose
• Changed the oil and filter after replacing parts

I then drove fine for 240 miles and that's when I got running too lean on both sides of the engine.

Someone said to change out the other 5 ignition coils and O2 sensors. Will this help? Thanks in advance to anyone that took the time to read to help out!

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I/M Readiness
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DATA STREAM 1-45
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You could have a leaking high pressure fuel pump, but that's not what's causing those 2 codes. You have unmetered air entering the engine. Your MAF reading is 3.78 gps, and it should be 4.32 gps hot at idle with no load. Check for any leaks on the intake side or into the crankcase such as dipstick not seated or oil cap leaking. Also, a faulty O2 sensor wont cause these 2 codes to set without there being a O2 sensor code set as well, so don't waste your money.