Big problem, stupid cause. Need help
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Senior User
Joined: May 2004
Posts: 232
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Originally Posted by Kemicalburns
was the sensor you disconnected look like a silver canister next to the throttlebody?
The problem has happened again, but somewhat different. I heard a clicking coming from that sensor a few months back, so I disconnected it, and drove it a couple months. When I changed the plugs/wires I hooked it back up, and it wasn't clicking anymore. That's what led me to try unhooking it today. So, with that sensor still detached...
I change the O2 sensor, and there is no change in idle/shifting. I start the truck 2 or 3 different times during this test out. So I go back home this time, turn off the truck, unplug the TPS, hit the key, and it won't start. I go plug the TPS back in, and it still won't start. This is the exact thing that happened with the O2 sensor last night, but this time it's the TPS. I had a friend turn it over while I watched the pin inside the TPS, and it is moving. It's getting spark, and there is pressure on the fuel rail. This is freakin nuts guys. Any ideas?
Brandon
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
i think you need to find a computer from a wrecking yard and try that. hook everything up as it should be. your chasing and it will cost you time and money in the long run. untill you can pull i would not go further
Senior User
Joined: Oct 2000
Posts: 125
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From: Spokane, Wa.
Charles Probst wrote several books on understanding and modifying the Ford fuel injection system. As it was introduced to me, I was told he wrote Ford's training program for their technicians. Mine included detailed schematics, more in depth explanations of the various error codes, and individual component testing, as well as some lengthy diagnostic troubleshooting charts. I have one for my German made Ford cars and have found it invaluable over the years. I also used it extensively when working on my '91 Bronco I used to have. I *strongly* suggest anyone with an EEC-IV engine pick one up, it will take a lot of the mystery out of engine management and troubleshoot.
Just my 02 cents !
-Scott
Just my 02 cents !
-Scott
