4.6L (1996-2004 Modular) MustangTechnical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within. Sponsored by Cruizin Concepts
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Hey you guys, I just bought a 2001 mustang cobra with 111,*** miles on it and doesn't have any power in the low rpm's. Then when i'm on 4th gear and slam on the gas, it seems to want to bog down then accelerates. I can also hear a minor misfire too. I recently installed a JLT cold air intake and the check engine light came on so I took it to my pepboys so they could scan the code and pulled out two codes: P0171 and P0174 and told me about too lean bank 1 and 2.
I looked them up on line and tried replacing the 02 sensors and spark plugs but didn't help.
Any help or ideas would be great! thanks
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If spark issues were a possible issue, I recommend replacing the plug wires and coil pack. I have had a couple of v6s die completely at around those miles because of bad plug wires and coil pack. I just replace them out of habit around then and usually find the cars run better.
I will let the Cobra experts weigh in from here..
B]2005 V6[/B] .Manual, Eibach Sport Springs, Magnaflow Duals, CAI, Tune 17/9.5" Bullit Wheels.
2003 V6 . Manual, Stalker F/R body kit, 600w stereo amp.
1999 V6.. Manual, CAI, High Performance Cats, High Flow single exhaust, Tune.
1972 Mach1. Built 351W, C4 w/shift kit, Long headers, Flowmaster 40s w/custom duals. Eibach Sport lowering springs. Kyb shocks, New paint and stripes, Custom seats, Fresh red clearcoat paint and mach1 stripes.
The spark plugs (motor craft) are good. My mechanic replaced them about 2 weeks ago. I do hear a little misfire when it's on neutral.
Another problem i had was when I was on third gear, i popped it into neutral to make a stop and it turned off on me?
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