Will Not Run On 24LB Injectors

Euroeater95 · October 31st, 2006, 01:36 PM

I cannot figure out for the life of me why my 95 Gt with a 347 Stroker will not run on 24LB injectors. I have Ford Racing 24Lbs and a Granatelli 90mm Mass Air that is calibrated to 24 lbs. It runs fine with the stock 19lbs. Any Ideas?

1slo5.0 · October 31st, 2006, 01:57 PM

Double check the mass air flow sensor. If it runs when you put 19lb injectors in with that mass air but doesn't with the 24lb injectors, that tells me the sensor is either wrong or bad.

Euroeater95 · October 31st, 2006, 02:01 PM

It runs with the 19lbs and the stock mass air sensor.

1slo5.0 · October 31st, 2006, 02:29 PM

Originally Posted by Euroeater95

It runs with the 19lbs and the stock mass air sensor.

But not with the 24lbers and the new meter? It is possible that you have a faulty mass air sensor. Is it new? I'd call and see if you can exchange it.

Autotech · November 1st, 2006, 08:29 AM

I agree, the problem lies in the Granatelli 90mm Mass Air Sensor

lugthug713 · November 4th, 2006, 11:24 PM

If you have the stock GT ecu uprade it to the cobra ecu that ecu will work with 21lbs injectors and mass air. the stock GT ecu only works with 19lbs. Or you can have a chip burnt. Thats what you should do anyways

October 31st, 2006, 01:36 PM	#1
Euroeater95 Regular Join Date: Sep 2006 Posts: 157 iTrader: 0 reviews	Will Not Run On 24LB Injectors I cannot figure out for the life of me why my 95 Gt with a 347 Stroker will not run on 24LB injectors. I have Ford Racing 24Lbs and a Granatelli 90mm Mass Air that is calibrated to 24 lbs. It runs fine with the stock 19lbs. Any Ideas?

October 31st, 2006, 01:57 PM	#2
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Double check the mass air flow sensor. If it runs when you put 19lb injectors in with that mass air but doesn't with the 24lb injectors, that tells me the sensor is either wrong or bad. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

November 1st, 2006, 08:29 AM	#5
Autotech Regular Join Date: Aug 2006 Posts: 79 iTrader: 0 reviews	I agree, the problem lies in the Granatelli 90mm Mass Air Sensor __________________ www.freeautomechanic.com

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October 31st, 2006, 02:01 PM	#3
Euroeater95 Regular Join Date: Sep 2006 Posts: 157 iTrader: 0 reviews	It runs with the 19lbs and the stock mass air sensor.

November 4th, 2006, 11:24 PM	#6
lugthug713 Regular Join Date: Oct 2006 Posts: 282 iTrader: 0 reviews	If you have the stock GT ecu uprade it to the cobra ecu that ecu will work with 21lbs injectors and mass air. the stock GT ecu only works with 19lbs. Or you can have a chip burnt. Thats what you should do anyways

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