Ecu Question
#61
04-30-2007, 04:31 PM
Originally Posted by countryboy4_1qt
I know the harness off the '96 didn't work with the '93 ECU and either my brother will have to live with the crappy gas mileage and the hesitatin and loping or get rid of the truck because I don't see any way of getting a '96 ECU to work since there were no AOD's used that year or I don't think they even used the C4 that late in the F-150's
#62
04-30-2007, 04:49 PM
It hasn't thrown any codes everything is normal except the hesitation and lope and mileage all the vacuum lines are leak free and connected and the only thing we have left that we haven't diagnosed is the fact that the 93 ECU is not compatible with the '96 block something due to the firing order of a '96 being different than in '93 I am guessing. the ECU in the truck is good I just think they don't go together
#63
04-30-2007, 04:53 PM
The 93 harness is on the truck now, ok let me start again. The truck currently has a 5.0 block and heads, 93 lower and upper intake, 93 ECU and harness, so you think that taking the cam out of the 93 block and putting it in the 96 with the harness and ECU off the 93 will clean up the lope and get better mileage?
#64
04-30-2007, 04:55 PM
#65
04-30-2007, 04:58 PM
Originally Posted by countryboy4_1qt
The 93 harness is on the truck now, ok let me start again. The truck currently has a 5.0 block and heads, 93 lower and upper intake, 93 ECU and harness, so you think that taking the cam out of the 93 block and putting it in the 96 with the harness and ECU off the 93 will clean up the lope and get better mileage?
EDIT:
A stock 1993 5.0 engine should have had a roller cam.
EDIT:
I just looked it up a 1993 and a 1996 5.0 have the same cam and firing order.
So disregard everything I said about the cam.
Make sure you set the firing order to 13726548.
Last edited by subford; 04-30-2007 at 05:07 PM.
#66
04-30-2007, 05:18 PM
#67
04-30-2007, 05:19 PM
#68
04-30-2007, 05:22 PM
#70
04-30-2007, 05:26 PM
The haynes manual had 2 different firing orders one for 94 and earlier 15426378 and one for 95 and up 13726548 I knew I should have bought a chiltons hahaha but either way the firing order that has been in the truck is 13726548 so I think the only choice left is to find a rebuilt '93 block
#71
04-30-2007, 05:33 PM
Originally Posted by countryboy4_1qt
The haynes manual had 2 different firing orders one for 94 and earlier 15426378 and one for 95 and up 13726548 I knew I should have bought a chiltons hahaha but either way the firing order that has been in the truck is 13726548 so I think the only choice left is to find a rebuilt '93 block
#72
04-30-2007, 05:37 PM
