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Old 10-06-2018, 12:30 PM   #1
74Powerwagon
 
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Cummins whoas

Ok my 05 has been nothing but trouble since I bought it but itís been worth the headache. I had a wire shorting out in the 5v system before hand and it was causing about 11 codes to be thrown well I got that all sorted about and havenít had a problem for about 4-5 months this morning I fire it back up and itís throwing a bank 1-3 injector fault code high low resistance. It threw this code before so we changed the injector wires that run through the valve cover and it seemed to fix the problem even though those all ohmed out good. It has also had the wait to start light come on when going at freeway speeds. And my miss fire perimeter wonít reset. There is a service bulletin out for that saying reflash ecm and if that doesnít fix the problem to replace it with one that doesnít have that perimeter. I bought a brand of injectors to give them a shot and I think that my be nightingale me in the ass or my ecm is toasted been through all the wireing also has dealership do the same. Any suggestions would be greatly appreciated.


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Old 10-06-2018, 02:21 PM   #2
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Make sure all your grounds are good any that you don’t have any oil in your injector harness plugs. Ecm is possible but rare.
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Old 10-06-2018, 09:33 PM   #3
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My head hurts from reading that post.
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Old 10-06-2018, 09:39 PM   #4
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My head hurts from reading that post.
I thought it might have been a thread on brakes.
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Old 10-07-2018, 12:58 AM   #5
74Powerwagon
 
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Quote:
Originally Posted by TBittner View Post
Make sure all your grounds are good any that you donít have any oil in your injector harness plugs. Ecm is possible but rare.


Ok Iíll check that again I just put new plugs on it about 4 months ago been nothing but trouble since motor ate the turbo


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Old 10-07-2018, 12:59 AM   #6
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My head hurts from reading that post.


Ya your not the only one beating my head against the wall for the past 8 months with this truck sure sucks.


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Old 10-07-2018, 09:25 AM   #7
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Loaded voltage drop on the circuits involved with the codes. 5 amps should do.
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Old 10-07-2018, 11:33 AM   #8
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Of all the CR 5.9 ECMs I get requests for, due to outright failures, 2005 is at the top of the list.
Beating that one for failures, is the 2007.5-2009 6.7 ECM, which is total garbage in it's own right.

Don't even get me started on the 24 valve ones.

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Old 10-26-2018, 09:50 AM   #9
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My head hurts from reading that post.


Hitting mine against a well hurts also!


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Old 10-26-2018, 09:51 AM   #10
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Quote:
Originally Posted by TBittner View Post
Make sure all your grounds are good any that you donít have any oil in your injector harness plugs. Ecm is possible but rare.


I had the 5v problem in the past and had dealer look it over they found the problems and fixed them.


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Old 10-26-2018, 09:57 AM   #11
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Quote:
Originally Posted by Mark Nixon View Post
Of all the CR 5.9 ECMs I get requests for, due to outright failures, 2005 is at the top of the list.

Beating that one for failures, is the 2007.5-2009 6.7 ECM, which is total garbage in it's own right.



Don't even get me started on the 24 valve ones.



Mark.


Well itís got a fault for injector high low resistance on bank one P2146 I got rid of the other ten this one seems to keep coming back new injectors but not a really well known brand. Diesel logic? Shop out of Florida. I also have misfire perameter that wonít set guy I bought truck from had to have it released 3 times to pass smog.


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Old 10-26-2018, 09:58 AM   #12
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Quote:
Originally Posted by Mark Nixon View Post
Of all the CR 5.9 ECMs I get requests for, due to outright failures, 2005 is at the top of the list.

Beating that one for failures, is the 2007.5-2009 6.7 ECM, which is total garbage in it's own right.



Don't even get me started on the 24 valve ones.



Mark.


Also are 1998.5 had to put a computer in boy was that a fun 6 months to find one


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Old 10-26-2018, 12:04 PM   #13
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Quote:
Originally Posted by 74Powerwagon View Post
Well itís got a fault for injector high low resistance on bank one P2146 I got rid of the other ten this one seems to keep coming back new injectors but not a really well known brand. Diesel logic? Shop out of Florida. I also have misfire perameter that wonít set guy I bought truck from had to have it released 3 times to pass smog.


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More often than not those bank codes are set by injector solenoids. Pull the valve cover with the engine hot, remove the wire harnesses from the studs on the injectors, and check resistance between the two posts. Use a good meter. Spec is less than 1 ohm, but I've found that they are usually around .6 ohms, give or take a few tenths. If you have 5 that are .6 and one that is .9 or higher, that is very likely your problem injector. Some of those off brand rebuilders use aftermarket (not Bosch) solenoids, which are hit and miss.
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Old 10-26-2018, 12:18 PM   #14
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As many have said here in the past, swap injectors around to see if the problem follows it. If it doesn't, then the ECM is likely the culprit, but if it does, then a solenoid is causing the issue.
Personally, I wouldn't even consider a bargain basement injector seller.
I'd go to a reputable Bosch shop, such as South Central Diesel in Holdrege, Nebraska, or Diesel Specialties in Omaha, Nebraska.

Mark.
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Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.
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Old 10-26-2018, 06:44 PM   #15
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Quote:
Originally Posted by Yotadzl View Post
More often than not those bank codes are set by injector solenoids. Pull the valve cover with the engine hot, remove the wire harnesses from the studs on the injectors, and check resistance between the two posts. Use a good meter. Spec is less than 1 ohm, but I've found that they are usually around .6 ohms, give or take a few tenths. If you have 5 that are .6 and one that is .9 or higher, that is very likely your problem injector. Some of those off brand rebuilders use aftermarket (not Bosch) solenoids, which are hit and miss.


Good to know I plan on putting ecm in it because we have been fighting that problem since I bought the truck I have a feeling he welded on it and fried it. But yes I will check injectors I already changed the plugs through valve cover


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Old 10-26-2018, 06:46 PM   #16
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Quote:
Originally Posted by Mark Nixon View Post
As many have said here in the past, swap injectors around to see if the problem follows it. If it doesn't, then the ECM is likely the culprit, but if it does, then a solenoid is causing the issue.
Personally, I wouldn't even consider a bargain basement injector seller.
I'd go to a reputable Bosch shop, such as South Central Diesel in Holdrege, Nebraska, or Diesel Specialties in Omaha, Nebraska.

Mark.


Ya I knew that for the injectors going Into it and I think it wound up biting me in the ass live and learn some times thereís quite a price involved with it. Iím having ecm reflashed next week and if not they get rid of that perimeter all together so it will pass smog. The code also clears once itís running/warm and cycles a few times


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Old 10-26-2018, 06:47 PM   #17
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Quote:
Originally Posted by Yotadzl View Post
More often than not those bank codes are set by injector solenoids. Pull the valve cover with the engine hot, remove the wire harnesses from the studs on the injectors, and check resistance between the two posts. Use a good meter. Spec is less than 1 ohm, but I've found that they are usually around .6 ohms, give or take a few tenths. If you have 5 that are .6 and one that is .9 or higher, that is very likely your problem injector. Some of those off brand rebuilders use aftermarket (not Bosch) solenoids, which are hit and miss.


Also the code clears once keys cycle a few times and itís warm.


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Old 11-04-2018, 07:13 AM   #18
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12 valve swap it.




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Old 11-04-2018, 07:22 AM   #19
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While reinventing the wheel is a nice idea, you never cure a problem by pushing it aside.
Learn how to fix what's wrong, instead of running the other way.

Mark.
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If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive.
Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.
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Old 11-21-2018, 03:42 PM   #20
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While reinventing the wheel is a nice idea, you never cure a problem by pushing it aside.
Learn how to fix what's wrong, instead of running the other way.

Mark.


Got it into the dealer itís narrowed down to now to injectors wiring to injectors or ecm gonna swap injectors and if codes move we found it. Also a really low cranking voltage on start up my have bad battery cable


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