Chasing my tail again!
Thread Starter
|
Senior User
Joined: Feb 2014
Posts: 126
Likes: 0
Freshman User
Joined: Apr 2013
Posts: 32
Likes: 0
May I suggest, the EEC relay powers the FP relay, here's the test for the EEC relay,
<table class="ADVV1-HotlineArchives-Whites" cellpadding="0" cellspacing="0"><tbody><tr><td class="ADVV1-HotlineArchives-LeftRuledRows">
</td> <td class="ADVV1-HotlineArchives-RuledRows"> 1. Go to the Electronic Engine Control (EEC) Relay. Check for battery voltage on the Black/Yellow (BK/YE) wire from the fuse link. Check for battery voltage on the White/Light Blue (W/LB) wire with the key on from the ignition switch. Check the Black (BK) wire for a good ground. If all OK, there should be battery voltage out of the relay on the Red (or possibly Blue fuse link) wire. If there is none, inspect the connections at the relay. If OK, replace the relay and retest.
2. To verify that the EEC relay is the only fault, jump the BK/YE wire to the Red (or Blue) wire. This should power the system up and the truck should start and run.
</td></tr></tbody></table>
<table class="ADVV1-HotlineArchives-Whites" cellpadding="0" cellspacing="0"><tbody><tr><td class="ADVV1-HotlineArchives-LeftRuledRows">
</td> <td class="ADVV1-HotlineArchives-RuledRows"> 1. Go to the Electronic Engine Control (EEC) Relay. Check for battery voltage on the Black/Yellow (BK/YE) wire from the fuse link. Check for battery voltage on the White/Light Blue (W/LB) wire with the key on from the ignition switch. Check the Black (BK) wire for a good ground. If all OK, there should be battery voltage out of the relay on the Red (or possibly Blue fuse link) wire. If there is none, inspect the connections at the relay. If OK, replace the relay and retest.
2. To verify that the EEC relay is the only fault, jump the BK/YE wire to the Red (or Blue) wire. This should power the system up and the truck should start and run.
</td></tr></tbody></table>
Freshman User
Joined: Apr 2013
Posts: 32
Likes: 0
if pin #22 at EEC is shorted to ground pump will run all the time with key on tan/lt grn. if you disconnect EEC 60 pin and check tan/lt grn for resistance to ground .005 or less good if any continuity to ground check for short to grnd. on pin #22 FP relay control
Thread
Thread Starter
Forum
Replies
Last Post
RadioControlGuy85
1987 - 1996 F150 & Larger F-Series Trucks
8
Jan 7, 2016 06:08 PM
galaxiedan
1987 - 1996 F150 & Larger F-Series Trucks
10
Jul 1, 2010 08:44 PM
