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Having a way to measure fuel pressure has been a key source of info for me, on working with my rig. You can have a permanent pressure gauge if you want it, it would be nice but is totally up to you. I don't have one set up permanent.
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Did a little reasearch and it refreshed my memory
cratchhe:
Ok this
http://www.holley.com/512-500-1.asp
And then this
http://www.steeda.com/store/steeda-fuel-...stang.html
:popc1:
Waiting to build or BUY another legend! :thefinger:
Always an EB fan, lover and freak :notworthy:
1985 Yoda 4Runner :xyxthumbs:
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What ever happened with the KOER codes?
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.mokin:
Roads? Where we're going, we don't need roads.
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It hasn't thrown a check light since I figured out my stale fuel / lack of fuel problem several weeks ago before I swapped out the rear 4 link. It's got plenty of fresh fuel now and no light
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig
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Whatever is happening may not be enough to trigger a hard code in the computer which is when you see the check engine light. The only way to determine if something is going on with your electronics in a situation like this is to explore the KOER and CONTINUOUS tests when the problem occurs. Otherwise, you may be chasing a ghost.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.mokin:
Roads? Where we're going, we don't need roads.
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After looking under the hood while closed, there is not enough room to add that fitting in-line where I had hoped. Of course the easy place won't work and I may end up cutting the line further down to add this if I have to.
I did find the STI wire - it is in the same plastic block with the other wires that is impossible to open up!
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig
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12-05-2011, 06:27 PM
(This post was last modified: 12-05-2011, 06:31 PM by SC74.)
Just grounded the STI and checked for codes via my check engine light. Here is what I got....
2-2-8-1-8-2-8-5-8-4-2-2-8-1-8-2-8-5-8-4
If I read correctly, this gives me codes:
22: MAP/BP sensor out of self test range
81: Air management 2 circuit failure (AM2/TAD) - this is for KOEO, but under CM it says MAP sensor vacuum was not greater than 2 in-Hg (7 kPa) during normal vehicle operation. The instructions on Ryans harness says Smog Pump Solenoid 2 inoperative - Soft Code
82: The only 82 code is for KOER and says Air management 1 circuit failure (AM1/TAB) The instructions on Ryans harness says Smog Pump Solenoid 1 inoperative - Soft Code
85: Canister Purge Solenoid circuit failure
84: EGR Vacuum Solenoid circuit failure
Can anyone else make sense of this foreign language to me? I am going to go do it again and get past these codes and see if it has any CM codes.
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig
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And the one CM code is 96: Fuel pump secondary circuit failure. The EEC did not sense battery voltage on the Fuel Pump Monitor circuit.
This makes no sense to me b/c my pumps have always cycled on with the key switch.
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig
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Just on what I have read I would be looking for a ground or power problem. All of those codes are realted to low or incorrect voltage.
I have a bunch of wiring diagrams if you need any, what year is the 5.o from?
[SIGPIC][/SIGPIC]