[MrPlowJr_EZ_V]

OK... Just got to installing the new injectors(8), I had a leaker before... Now everytime I start up I get the following:
Sorry I don't have the code numbers, these are off the top of my head.

Codes stored in idm code...
8 high side open codes one for each Cyl
2 high side open one for each bank

Then after driving the following come up
Map sensor code, LOW BOOST
ICP code Low pressure

It will spit out the IDM codes after doing a buzz test, but I can hear all 8, and when I do a Cyl Contribution test, it will fail randomly on a seemingly random Cyl.

When I drive it it operates fine at low speed but if it get on it hard for a minute the boost will go to 20, then fall to 15, meanwhile monitoring the Oil pressure it goes up to 2200psi, then plummits to 700psi and the egt's shoot up to near 1000, it feels like it's under severe load at this point. to me it seems like the oil pressure is causing the fall out. It feels like it runs out of oil WAY earily.

I tried swapping the IDM into another truck and it worked fine in the other truck, I pulled the chip and got the same results, changed oil:same results. checked and checked again all harnesses to injectors, and valve covers.
What am I missing here? /ubbthreads/images/graemlins/shrug.gif

 

[JimTJr]

IPR maybe?

 

[bunting]

Could have cut an oring in the installation process.

Whos built the injectors U installed, are they remans or new from ford?

The oil PSI drop thing could also be coming from a bad injector, one of the intensifier piston in the injector is staying open and dumping all the oil out. Ive been there before. As for the open to ground thing. You really need to check ALL the connections at the injectors. And take the VC harness off and check them. Also check the plug for the VC harness and make sure it is seated correctly. These harnesses can be picky.


The best way to check the VC harness is to use a digital multimeter and check the resistence in each wire. This is how I found one of mine to be bad. Even though they all had continuity one wire had alot of resistance in it.(still had other problems after that though, injectors wise but it narrowed it down) The ground wire I believe is the center pin in the VC harness and the big pins are for the GP's. The rest are the hot wires for the injector plugs.

It looks like your problem with the wiring rest on the drivers side anyhow( I think)

Fix the wiring problem before you try and hunt down the injector problem.

 

[MrPlowJr_EZ_V]

I can check the o-rings, I still have an extra set of those. these are the injectors in my sig, Beans Stage 1 Splits. I'm going to gave a call into him today. just to see if he has any ideas.

I was thinking maybe IPR, but with so many codes I thought maybe the computer was telling it to drop the pressures. and go into a "Safe Mode"

They don't seem to leak, I don't have any oil in the fuel, or any excess smoke.

When I pulled the chip out the codes were delayed until I actually drove it. so that made me think that it was having to do with advance, or fuel delivery. /ubbthreads/images/graemlins/shrug.gif

 

[MrPlowJr_EZ_V]

I forgot to mention, with just the chip it runs rough, like it did with the 18k plugged in, it will smooth out a little with the chip removed. but still seems a little rough.

 

[BIGBEAN]

Another thing that cause a miss is the dead head system, have had to run some for miles before the last injector would start firing.


Justin is right though, could have one sticky poppet valve or some how got trash in under the plate and be causing a oil bleed off problem.

 

[MrPlowJr_EZ_V]

It's run for about 10/15 miles, how far do you think it might take worst case scenerio?


The high Side open codes, does that refer to electrical? and If so, all 8? odd... might be time to get the trusty fluke out.

 

[bunting]

Once you have gotten rid of the codes do a cylinder contribution test and try and pin point where the problems lies there. Just be sure the truck is at operating temperature and ALL accesories are off. Also do the test 2 or 3 times to see if it is consistent.

 

[MrPlowJr_EZ_V]

I have a feeling if I get rid of the codes I'll be off to the races. I can't believe the problems are not related somehow.

If I had a High side open one on each cyl after a buzz test, would it still run? and reasonably well at idle at that. /ubbthreads/images/graemlins/shrug.gif

I'm soo confused, I guess I will read some more about these beasts!

Thank you all for being so patient with me!

 

[bunting]

Getting rid of the "open" codes wont help with a mechanical issue inside the injector. The only code youshould throw for a stuck injector should be high/low hpop psi.