6.0 Ford Diesel

[benhur]

What's A Tip In Troubleshooting A "p0261 Code?" " Injector #1 Circuit Low

[KM@PROAUTOTECH]

6.0

Functional Tests, Inj. Balance or Buzz test.

Then check control and power. Inj, and harness problems with 6.0, but I would run the test to be sure.

[diesel71]

the injector buzz test is your bet bet. does the engine have a miss?
do a koer test to see if that same code kick"s up.
most common causes are a open circuit,fuel injector or a connector loose on the ficm.

[benhur]

Yes the engine has a miss, the injection timing shows a 3.8/3.9 negative

[diesel71]

ok try this=set up the scanner to do a injector buzz test, make sure there is as littel noise as posiable around the shop so you can hear the injector solenoids click. run the buzz test and listen for the injector solenoids to click.
the test will buzz all 8 then one at a time, numbers 1-8 then it will repeat.
you should here all of them click if so the injector solenoids and wire harness from the ficm is ok. if all click except #1 disconnect the suspect fuel injector connector and test the injector pins for resistance. measure the resistance between the suspected fuel injector pins,component side.
pins 1 and 2 =0.2 to 3.0 ohms
pins 3 and 4= 0.2 to 3.0 ohms
pins 1 and 3=greater than 10,000 ohms
pins 1 and 4=greater than 10,000 ohms
pins 2 and 3=greater than 10,000 ohms
pins 2 and 4=greater than 10,000 ohms
if the resistances are not within specs the fuel injector solenoid is bad and the injector will need replaced.
if the resistances are good you need to check the ficm.

[JohnButler40]

6.0 Turbo Charger VGT Funtional test

Does the Modis perform the VGT Functional Test? We have a Modis in our shop I went through the test procedure for code P0046, and found that either the 7.2 or the 8.2 version has it. We just recieved our 8.2 version and I didn't see it. Does any body know any work arounds or has person run across this problem with either software upgrades? Does the 8.4 upgrade have this function? It helps with determining if the VGT acturator is functioning propery before taking the turburcharger off to clean the vanes from choking and sut build up, causing a noise coming back through the air cleaner. This happen to one of our F350 03 model year. Spent a lot of time downtime and before taking the turbo off and check for end play in the turbo it self and replacing it. Without out this function you really can't proceed with the circuit test and other electrical test for the acturator and computer. It $$$ for guess work, especially over $1065 For the turbo.by itself. The Vgt Acturator is addition cost because it does not come with the turbo. Has Snapon been asked about this function. There is TSBs on the cleaning and other procedures on the turbo.

[diesel71]

Does the Modis perform the VGT Functional Test? We have a Modis in our shop I went through the test procedure for code P0046, and found that either the 7.2 or the 8.2 version has it. We just recieved our 8.2 version and I didn't see it. Does any body know any work arounds or has person run across this problem with either software upgrades? Does the 8.4 upgrade have this function? It helps with determining if the VGT acturator is functioning propery before taking the turburcharger off to clean the vanes from choking and sut build up, causing a noise coming back through the air cleaner. This happen to one of our F350 03 model year. Spent a lot of time downtime and before taking the turbo off and check for end play in the turbo it self and replacing it. Without out this function you really can't proceed with the circuit test and other electrical test for the acturator and computer. It $$$ for guess work, especially over $1065 For the turbo.by itself. The Vgt Acturator is addition cost because it does not come with the turbo. Has Snapon been asked about this function. There is TSBs on the cleaning and other procedures on the turbo.

to the best of my knowlage no the modis does not do this test BUT you can use the modis to see if the vgt acturator is working.
from the main data menu go to turbocharger data scroll to the bottom and you will see vgt% at a idle you should have a high percent 70-80% as you accelerate the % will go down,depends on how the engine is loaded. look at the % in graph forum as you throttel the engiine up it should change with rpm and boost. if it is sticking you will see it hang up. poo46 is the code for a bad vgt solenoid, have you checked the circuit?

[bwrench]

John, the Modis will not do any of the functional tests on the 6.0 Ford. If you want this function, you will have to step up to a IDS.

[bwrench]

I need to clarify that.. I should have said, "bidirectional controls" . The modis will do the injector buzz test and some of the functional tests. If you want them all, then step up to the IDS.

[erauto]

6.0 miss

just a hint guys, i work on these on a daily basis, i have found a few cases with rub through harness on inner cooler pipe, left side look carefully, just a tip

[JohnButler40]

That is part of the circuit test without this function you are blind to which way to go on the test tree.

[JohnButler40]

WHat is the IDS? who make it and how do we get one... Lot of scan tools out there Also i learning the functions of the MODIS since we just recieve it last year ....How to you set it up on the MODIS if I'm understanding you
thanks

[diesel71]

That is part of the circuit test without this function you are blind to which way to go on the test tree.

Im not sure we are on the same page,could you explane more on what it is you want to test?

[JohnButler40]

P0046 is the performance test and the vgt acturator test circuit without the the command function to ck the circuit with a test lightit is hard to ck the operation of the circuit... you cannot get past, this sterp what I beleive is step 3 to make sure the circuit is function properly. It would be a great function .