One last question before.........
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New User
Joined: Feb 2008
Posts: 9
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One last question before.........
I have a 92 bronco that I've done a MAF swap. Used a 95 f150 eng and front chassis harness with a WAY1 ecu. I'm what seems like a injector timing issue. According to my wiring diagram, I have no crank sensor for this WAY1 eec swap. Question, how does the ecu know when to fire the injectors with no crank sensor? As what I've come up with even, the distributor is the same from the SD to MAF so how does it know?
Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
There is a narrow tooth on the reluctor wheel in the distributor that corresponds to cylinder #1. Both SD and MAF need a reference to TDC #1, so there shouldn't be any problem using the original distributor. The firing order is different from '92 to '95, is that the issue you are seeing?
Fleet Owner
Joined: Oct 2005
Posts: 20,785
Likes: 1,751
From: Kentucky
There is a narrow tooth on the reluctor wheel in the distributor that corresponds to cylinder #1. Both SD and MAF need a reference to TDC #1, so there shouldn't be any problem using the original distributor. The firing order is different from '92 to '95, is that the issue you are seeing?
It's very important to get the distributor lined up with cylinder #1 on a sequential fire EFI vehicle.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Only on the 5.0 the 5.8 is the same.. but the OP didn't specify what engine the truck has. If it is a 5.0 then the cam firing order is the problem and none of the fixes are easy, either the cam has to change to a later model with the HO firing order or you need a tuner to change the firing order inside the PCM. Rewiring the injectors is a third possibility but only if the truck is using a single O2 sensor, if it has dual sensors that won't work.
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