P1211 code with constant service engine light
FTE-Spread The Knowledge
Joined: Feb 2008
Posts: 2,289
Likes: 246
When you get the P1211 the CEL should come on and go off when the condition returns to normal is that correct? Or does the CEL stay illuminated like what I experienced? If the code will pop up and CEL will go out I'm fine with that, I just don't want the CEL on all the time.
Elder User
Joined: Sep 2011
Posts: 979
Likes: 4
From: Vancouver
Well I got it figured out for now. I did some research and it looks like I didn't clean the edge pins/connection on the ECM. There was still silver on the pins so I cleaned them to all copper color and put the chip back in and no constant CEL. I guess chock it up to rookie mistake. But the weird thing is it was working fine for 4 months and all of a sudden it had problems. Well I hope that it is all good for now.
Removing all of the solder (tinning) does not contribute to good quality connections long term.
In fact, exposing the copper trace (the thin copper conductor deposited on the p.c. board and not recoating it with solder allows a slow process of oxidation of the copper, especially when the vehicle is parked outside.
Lightly buffing the tinned surface and coating the contacts with a small amount of anti-oxidant grease before installing the chip gives you the best long term continuity.
Larry
Removing all of the solder (tinning) does not contribute to good quality connections long term.
In fact, exposing the copper trace (the thin copper conductor deposited on the p.c. board and not recoating it with solder allows a slow process of oxidation of the copper, especially when the vehicle is parked outside.
Lightly buffing the tinned surface and coating the contacts with a small amount of anti-oxidant grease before installing the chip gives you the best long term continuity.
Larry
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
What you are looking for is a multi-purpose contact enhancer/sealer. Stabilant 22 has a very dry web page (I think one of their engineers designed it and wrote it), but the product really works. Here is the most abridged summary I could find on the product, and I really had to seek it out. How's your engineer-speak?
Contact failure is rarely caused by a single factor. Thus, treatments that solve only one problem don't necessarily offer a reliable long term solution. For example, cleaners do not prevent the re-entry of contaminants or the reformation of contaminant films; nor do they offer any lubrication. They must be used each time a connector gets dirty. Lubricants in themselves are rarely cleaners. Corrosion inhibitors are neither cleaners nor lubricants and are often specific to one type of metal or plating. Unsaturated oils used as contact treatments can cross-link under the influence of elastomer or thermoset plastic curing agents and accelerants.
While resident in the connector, Stabilant 22 performs several concurrent functions. Its very presence in the contact gap will prevent the entry of outside contaminants. It has sufficient surfactant action to lift surface contaminants and hold them in suspension. In cases where corrosion products are present, Stabilant 22 will penetrate them and prevent rectification effects. Due to its high dielectric constant it will act to form a capacitive layer which is in parallel with whatever residual resistance exists in the contact increasing the passage of AC signals. Given sufficient DC bias within the gaps of the contact the thin film of Stabilant will "switch", conducting by quantum tunnelling, and thus limit the resistance of the contact to a serviceable level.
Contact failure is rarely caused by a single factor. Thus, treatments that solve only one problem don't necessarily offer a reliable long term solution. For example, cleaners do not prevent the re-entry of contaminants or the reformation of contaminant films; nor do they offer any lubrication. They must be used each time a connector gets dirty. Lubricants in themselves are rarely cleaners. Corrosion inhibitors are neither cleaners nor lubricants and are often specific to one type of metal or plating. Unsaturated oils used as contact treatments can cross-link under the influence of elastomer or thermoset plastic curing agents and accelerants.
While resident in the connector, Stabilant 22 performs several concurrent functions. Its very presence in the contact gap will prevent the entry of outside contaminants. It has sufficient surfactant action to lift surface contaminants and hold them in suspension. In cases where corrosion products are present, Stabilant 22 will penetrate them and prevent rectification effects. Due to its high dielectric constant it will act to form a capacitive layer which is in parallel with whatever residual resistance exists in the contact increasing the passage of AC signals. Given sufficient DC bias within the gaps of the contact the thin film of Stabilant will "switch", conducting by quantum tunnelling, and thus limit the resistance of the contact to a serviceable level.
Thread Starter
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Senior User
Joined: Feb 2008
Posts: 264
Likes: 0
From: San Diego
So the TSPerformance web page said to clean it to the copper color. I should have looked around better, my own fault on that. I didn't remember where I got the original directions from but it obviously said to keep the silver on the contacts or I would have cleaned it to copper.
So would I be able to retin the contacts with a soldering iron? If not I will try to get some of the recommended contact stuff.
Thanks again guys.
So would I be able to retin the contacts with a soldering iron? If not I will try to get some of the recommended contact stuff.
Thanks again guys.
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
So the TSPerformance web page said to clean it to the copper color. I should have looked around better, my own fault on that. I didn't remember where I got the original directions from but it obviously said to keep the silver on the contacts or I would have cleaned it to copper.
It basically says the same thing you just discovered.
As for re-tinning the contacts, I thought I read somewhere that you have to know what you're doing if you try to do it. So maybe check out a YouTube vid, if possible.
Stewart
More Turbo
Joined: Nov 2016
Posts: 545
Likes: 2
From: SGV SoCal
Well, you have done it now!
The original coating was likely silver, not tin.
It is commonly used in the electronic industry.
If Ford was not so cheep it would have been gold.
You need to get some solder wick. Tin the contacts with solder and them remove the solder with solder wick. That will give you a smooth tin coating on your PCB.
Good luck.
Flux is your friend!
The original coating was likely silver, not tin.
It is commonly used in the electronic industry.
If Ford was not so cheep it would have been gold.
You need to get some solder wick. Tin the contacts with solder and them remove the solder with solder wick. That will give you a smooth tin coating on your PCB.
Good luck.
Flux is your friend!
Thread Starter
|
Senior User
Joined: Feb 2008
Posts: 264
Likes: 0
From: San Diego
Well, you have done it now!
The original coating was likely silver, not tin.
It is commonly used in the electronic industry.
If Ford was not so cheep it would have been gold.
You need to get some solder wick. Tin the contacts with solder and them remove the solder with solder wick. That will give you a smooth tin coating on your PCB.
Good luck.
Flux is your friend!
The original coating was likely silver, not tin.
It is commonly used in the electronic industry.
If Ford was not so cheep it would have been gold.
You need to get some solder wick. Tin the contacts with solder and them remove the solder with solder wick. That will give you a smooth tin coating on your PCB.
Good luck.
Flux is your friend!
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2nd Gear
Joined: Nov 2023
Posts: 2
Likes: 1
Here is a posting I found...
P1211 - "ICP Higher / Lower than Desired" (7.3):
1. We all know that this code is commonly caused by "Hot Chips" that are demanding more Injection Control Pressure (ICP) than the High Pressure Oil Pump can deliver. For what it's worth, these are the exact parameters that trigger this code:
PRIOR TO BEGINNING THE TROUBLESHOOTING PROCESS RETURN YOU’RE PROGRAMMING TO STOCK AND/OR REMOVE OR DISABLE ANY CHIP.
ICP 410psi Higher than Desired for 7 Seconds
ICP 280psi Lower than Desired for 7 Seconds
2. This code can also be caused by LEGITIMATE HIGH PRESSURE OIL SYSTEM ISSUES. Below is a list of some of the causes:
a. Failed or Sticking IPR (Injection Pressure Regulator)
b. Failed or Weak HPOP (High Pressure Oil Pump) Any Leak in High
Pressure Oil System (O-ring, stuck injector, etc.) Low Fuel Pressure (Rare) P1280 / P1281 / P1283 - (7.3L)
c. These codes are all "electrical" in nature. Common causes are shorts between the Red and White IPR wires or between the Red IPR wire and ground. These can also sometimes indicate a PCM
P1211 - "ICP Higher / Lower than Desired" (7.3):
1. We all know that this code is commonly caused by "Hot Chips" that are demanding more Injection Control Pressure (ICP) than the High Pressure Oil Pump can deliver. For what it's worth, these are the exact parameters that trigger this code:
PRIOR TO BEGINNING THE TROUBLESHOOTING PROCESS RETURN YOU’RE PROGRAMMING TO STOCK AND/OR REMOVE OR DISABLE ANY CHIP.
ICP 410psi Higher than Desired for 7 Seconds
ICP 280psi Lower than Desired for 7 Seconds
2. This code can also be caused by LEGITIMATE HIGH PRESSURE OIL SYSTEM ISSUES. Below is a list of some of the causes:
a. Failed or Sticking IPR (Injection Pressure Regulator)
b. Failed or Weak HPOP (High Pressure Oil Pump) Any Leak in High
Pressure Oil System (O-ring, stuck injector, etc.) Low Fuel Pressure (Rare) P1280 / P1281 / P1283 - (7.3L)
c. These codes are all "electrical" in nature. Common causes are shorts between the Red and White IPR wires or between the Red IPR wire and ground. These can also sometimes indicate a PCM
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