Hesitation in boost and high rpm

[polskifacet]

Waiting on a yes or no from LMS on adjusting the tune. I would be shocked if they were against the change as that's the only thing that has made my car happy over the last months of troubleshooting. Hopefully they send me new tunes quickly and I can post a log.

 

[StealBlueSHO]

Yes same problem before motor replacement.

How sure are you that the HPFP is different? Its a $350 part that takes 5 minutes to swap over... reason being... if you have a weak spring in the HPFP then under load it would not perform well...

 

[polskifacet]

Yes same problem before motor replacement.

How sure are you that the HPFP is different? Its a $350 part that takes 5 minutes to swap over... reason being... if you have a weak spring in the HPFP then under load it would not perform well...

Yes sir, it's date stamped

 

[StealBlueSHO]

My spare one...

 

[polskifacet]

My spare one...

yup 9-6-2009

 

[polskifacet]

Flashed the 91 octane LMS tune before my way to work today and couldn't get it under 1800 PSI. Tried all the normal procedures. Was monitoring with torque app. No hesitation. I have been contemplating how much more time I want to invest in this issue and since I have a borescope, I should be able to check for leaky injectors if LMS or anyone could provide a how-to I know what to look for and how to make the fuel pump turn on or if I have to crank the engine etc. If those check out, I can replace the fuel line with a braided variant for something around $200?

 

[ZSHO]

Flashed the 91 octane LMS tune before my way to work today and couldn't get it under 1800 PSI. Tried all the normal procedures. Was monitoring with torque app. No hesitation. I have been contemplating how much more time I want to invest in this issue and since I have a borescope, I should be able to check for leaky injectors if LMS or anyone could provide a how-to I know what to look for and how to make the fuel pump turn on or if I have to crank the engine etc. If those check out, I can replace the fuel line with a braided variant for something around $200?

I will see what i can dig up for ya but need to give me some time.  Z

 

[StealBlueSHO]

My guess is the warmer ambient temps outside are the difference.

 

[polskifacet]

My guess is the warmer ambient temps outside are the difference.

I've logged in 50s before and it's been worse.

 

[ZSHO]

There is unfortunately nothing in the Ford WSM on how to exactly perform this procedure or anything linked directly to this procedure.
The only thing IIRC is to remove the spark plugs and then inserting the Boroscope inside the spark plug wells ,then pressurizing the injectors by turning the key on,while at the same time looking for a drip into the cylinder,side note do not crank the engine while Boroscope is inside the cylinder.

The other option is to have it Diagnosed with IDS Software to perform an injector Flow Test.
Hopefully LMS or others will have a broader perspective on exact detailed instructions.  Z

 

[polskifacet]

Did the procedure Z has stated and I could not see any type of leaking.

 

[polskifacet]

Actually spent more time in each cylinder than the videos. The rear 3 cylinders seemed to be more shiny than the front 3.

http://youtu.be/oK-MaFpwz7Q
http://youtu.be/6WWp2g3lqNo
http://youtu.be/MTl3ov-rDPc
http://youtu.be/ol9PTWEoOEA
http://youtu.be/XaiJvZv1myI
http://youtu.be/KoIwCQndRKE
http://youtu.be/4jEbYBXFwds

 

[ZSHO]

Glad everything checked out accordingly i guess.
Thats pure Commitment at its finest.
IMO would focus on the rear of the car where you found those wires cut!!!. Z

"HOW TO Section" anyone!!!.  Z

 

[polskifacet]

Glad everything checked out accordingly i guess.
Thats pure Commitment at its finest.
IMO would focus on the rear of the car where you found those wires cut!!!. Z

"HOW TO Section" anyone!!!.  Z

I remember how that wire got cut, my exhaust guy was using a sawzall and it slipped. I checked the harness there closely and it only carries bumper related stuff. Next plan of attack is the fuel line. If anyone has insight on the type of fittings required etc that info would be great. I'll be shooting for a 6an braided line. Should be fairly straightforward except for incorporating the fuel pressure sensor which will probably require dropping the tank.

Note: will give you guys a break for the next two weeks, going back to the motherland to visit family.

 

[SHOdded]

Come back refreshed, and enjoy time with the family.

 

[BoostedSho2010]

I have been driving the car on the stock tune for the second day and it feels healthier. Throughout the RPM band its obviously slower but it has like a harmony to it, I can feel there is no monkey business going on with it even though from the logs, you can see its heavily closing the throttle.

There was also sometimes a drop in rpm on the LMS tune when i would be coming to a complete stop which would cause a bit of a vibration (rpm dropped) and the rpm would then jump a bit past idle and calm down to a regular steady idle. I can't reproduce that on the stock tune.

Mine does that goofy idle drop as well.

Mine used too until I had my strategy updated... no longer does it do that.

Mind if I ask what strategy you have now, and how/what did you tell the Dealer to get them to do the update for you? 
I am on KHDK4, and one tuner had mentioned it might be nice to make sure I am on the latest strategy.  When I asked the dealer they pushed back saying no reason to do it.

I know mine idles low and bounces around a bit at idle.

The original strategy for my 2010 SHO was DMJK1AB and then after several updates it is now at DMJKBLA. Livernois had to "build" a new tune for my strategy since I was the first one with that strategy to get a tune.

The first dealer I went too flat out refused to perform a strategy update. The dealership a bit further down the road didn't even question, they were more than happy to take my $100....

In on a dmjk1ab


Sent from my iPhone using Tapatalk

 

[StealBlueSHO]

I have been driving the car on the stock tune for the second day and it feels healthier. Throughout the RPM band its obviously slower but it has like a harmony to it, I can feel there is no monkey business going on with it even though from the logs, you can see its heavily closing the throttle.

There was also sometimes a drop in rpm on the LMS tune when i would be coming to a complete stop which would cause a bit of a vibration (rpm dropped) and the rpm would then jump a bit past idle and calm down to a regular steady idle. I can't reproduce that on the stock tune.

Mine does that goofy idle drop as well.

Mine used too until I had my strategy updated... no longer does it do that.

Mind if I ask what strategy you have now, and how/what did you tell the Dealer to get them to do the update for you? 
I am on KHDK4, and one tuner had mentioned it might be nice to make sure I am on the latest strategy.  When I asked the dealer they pushed back saying no reason to do it.

I know mine idles low and bounces around a bit at idle.

The original strategy for my 2010 SHO was DMJK1AB and then after several updates it is now at DMJKBLA. Livernois had to "build" a new tune for my strategy since I was the first one with that strategy to get a tune.

The first dealer I went too flat out refused to perform a strategy update. The dealership a bit further down the road didn't even question, they were more than happy to take my $100....

In on a dmjk1ab


Sent from my iPhone using Tapatalk

Really?!?!?

 

[polskifacet]

Hey Guys,
Got back from my trip. Gave LMS a shout and got some crummy news. No one over there has touched my issue. No update or course of action.

Edit: Left Andy a VM I'm sure he knows more but it takes 48 hours to hear from him.

 

[SHOdded]

well, time to pursue the issue   I am sure they have a million things distracting them, so they need to be poked regularly!

 

[polskifacet]

Waiting on Andy to call me back should be today honoring his 48 hour call return policy. Also left Anthony an voicemail, figured I give Ethan a break, I'm sure he hates me by now lol.