misfire/shaking question
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Elder User
Joined: Mar 2004
Posts: 580
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From: Chippewa Falls, WI
I was really overall happy with how the operation went so far. I really really dreaded the passenger side but once I got that boost tube out of there it really wasn't as scary as it looked. The other thing that worried me was some previous owner installing cheap GP's that stuck in the heads but they must have been the origionals still and came out like a charm, at least three of them did, we shall see on the other 5 this weekend.
Is there some trick to getting the copper washer to stay on the end of the stick when it is tipped down? I can see that being somewhat of a pain.
Is there some trick to getting the copper washer to stay on the end of the stick when it is tipped down? I can see that being somewhat of a pain.
Hotshot
Joined: Jan 2011
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From: Puget Sound
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Elder User
Joined: Mar 2004
Posts: 580
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From: Chippewa Falls, WI
Well, I got the driver's side injectors out. None of the tips look really that bad at all. Pretty clean. some deposits here and there but nothing that stands out. The O-rings were completely shot on 2&4.
Just to confirm, what setting on the meter do you use to check GP's? I have been using the 20K setting. If it has O/L they are bad right?
Just to confirm, what setting on the meter do you use to check GP's? I have been using the 20K setting. If it has O/L they are bad right?
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Elder User
Joined: Mar 2004
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From: Chippewa Falls, WI
Got the driver's side injectors re-installed. The old o-rings were pretty bad. I am working on pulling the passenger side now. Didn't see any obvious signs of any bad injectors on DS, All the tips were fairly clean, hope the issue shows itself on the ps. If not I will cross my fingers and hope it was just really bad o-rings.
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Elder User
Joined: Mar 2004
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From: Chippewa Falls, WI
None of the injectors looked like they hadn't been firing. They were all about equal on soot on the tip. There was a fair amount of soot on all of them actually. I cleaned them all up, gently cleaned the tip with a soft brass brush, re-ringed them and put them back in. Is it possible the bad o-rings could cause this miss by themselves? They were pretty bad. Had to fish pieces of the lower ring out of the holes on two of them. I haven't gotten it all reassenbled yet. so I don't know if the miss remains and I am Running out of time today. Got the FRX on without too much problem, however I found I needed to remove the A/C compressor from its mounts to get that front plug in. A 7mm wrench fit the square head just perfectly. Did the IAH delete I have been meaning on doing too.
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Elder User
Joined: Mar 2004
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From: Chippewa Falls, WI
Ok a little update.
I got everything back together. I haven't gotten it started yet that is for tomorrow. However I managed to borrow a cheap scanner that can do buzz tests. so I went ahead and did it on the injectors cold which I know isn't preferred but I have to return the tool before i get a chance to start it.
First, all the injectors sounded great, all the same and very even.
second, the scanner gave me the following code which I understand to usually be a burnt harness which they looked fine to me. No singing or anything in the plugs.
"injector high side open bank 1"
Is that always a bad harness or is it just because the engine is cold? I don't have a problem replacing the harness if that is what it needs. what do you all think?
Thanks all.
I got everything back together. I haven't gotten it started yet that is for tomorrow. However I managed to borrow a cheap scanner that can do buzz tests. so I went ahead and did it on the injectors cold which I know isn't preferred but I have to return the tool before i get a chance to start it.
First, all the injectors sounded great, all the same and very even.
second, the scanner gave me the following code which I understand to usually be a burnt harness which they looked fine to me. No singing or anything in the plugs.
"injector high side open bank 1"
Is that always a bad harness or is it just because the engine is cold? I don't have a problem replacing the harness if that is what it needs. what do you all think?
Thanks all.
Senior User
Joined: Mar 2012
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From: Jenkintown, PA
According to the Ford Powertrain Control/Emissions Diagnosis manual (6-10), "High side open bank No. 1" means that there is an open circuit in the injector power supply for the right side of the engine (odd numbered cylinders). The manual lists probable causes as open wiring or faulty IDM. The fault code number is P1293.
If the right side injectors had no power you would not have heard all 8 during the buzz test. I think the code is probably an error, possibly stored from an earlier intermittent open circuit (loose 9 pin valve cover plug?). Can you try clearing the code and seeing if it returns?
If the right side injectors had no power you would not have heard all 8 during the buzz test. I think the code is probably an error, possibly stored from an earlier intermittent open circuit (loose 9 pin valve cover plug?). Can you try clearing the code and seeing if it returns?
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
I would rather buzz the injectors cold to hear the condition of the injectors. If you're getting a code, the first thing to check is for a loose, burnt, corroded wire or connector. Here's a link that will give you what you need to start testing wires with a meter. Remember to wiggle the wires and connectors while you check them to help find intermittent issues.
GB Remanufacturing - Tech Bulletin #103
GB Remanufacturing - Tech Bulletin #103
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Elder User
Joined: Mar 2004
Posts: 580
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From: Chippewa Falls, WI
I would rather buzz the injectors cold to hear the condition of the injectors. If you're getting a code, the first thing to check is for a loose, burnt, corroded wire or connector. Here's a link that will give you what you need to start testing wires with a meter. Remember to wiggle the wires and connectors while you check them to help find intermittent issues.
GB Remanufacturing - Tech Bulletin #103
GB Remanufacturing - Tech Bulletin #103