1995 Ford Mustang

ADAMSFISHING

MEMBER
1995 FORD MUSTANG
V8
2WD
MANUAL
68,034 MILES

My mustang gt has a 5.0. It had the upper half of the engine switched with cobra parts (heads, intake manifold, cold air intake) it has alum headers. My friend put it on his computer and runs very lean. It tends to breakup a bit until higher rpms It seems like it wants more fuel. Do you think I need heavier injectors and or a fuel regulator?

Monday, August 24th, 2009 AT 8:17 PM

1 Reply

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

You may have a problem with the calibration and duration of injector pulse as you have mixed and matched parts from two differing engines, I am sure that the Cobras will run different injectors to to Mustang std ECU you are running, doing this sort of match up can be a real headache. You may want to start with an exhaust analyzer test to see if it is running lean, and also see if the software on the ECU will do live data readouts with a good quality scanner, this way you can map out the systems one at a time and compair with each engine std data to see if all your parameters are with in spec,

Mark (mhpautos)

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Monday, August 24th, 2009 AT 8:30 PM