Question:

I’m pretty sure that the stock injectors are 19#s.  You will have to get an aftermarket Mass Air Flow sensor calibrated for the 24# injectors.  The fuel pump souldn’t affect how it runs, it only supplys the gas.  I have a 155lph pump in my 4.0 Ranger and it doesn’t affect it a bit.  Check with Vortec for a new MAF sensor. – Hide quoted text — Show quoted text ->          I also installed 24 lbs >    injectors and a larger fuel pump, but they had to be removed because they >    would cause the car to stall.  After switching back to the stock injectors and >    a new stock fuel pump, the engine runs.  

Response:

        Has anybody installed a Paxton Supercharger on a 1995 Explorer?  I have         recently added one to my Limited.  Other modifications include pulleys, K&N         air filter, Borla exhaust, and a  larger throttle body.  I also installed 24 lbs         injectors and a larger fuel pump, but they had to be removed because they         would cause the car to stall.  After switching back to the stock injectors and         a new stock fuel pump, the engine runs.  The problem that I am having is that         sometimes around corners, the car will stall.  Also when first starting the engine,         you have to crack it a little longer.  After about 15 minutes of driving the car, the         check engine light comes on.  I am no mechanic and I had somebody do the         work for me.  This is how he lef tme with the car.  I do not know of any other         high performace mechanics in the area.  Could somebody please point me in         the right direction.  I really do not want to drive the car with a check engine light.         Also, the mechanis claims that the stock injectors are 30 lbs injectors.  Could         this be possible?  Any help would be greatly appreciated!  For the 15 minutes         that I get to drive the car, it is AWESOME!  The car is very streetable and it         really moves when the rpms is up there.  If not for these problems, I would         highly recommend it.

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