Tuning Help Needed HPT 3 Bar OS
Thread Starter
Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
Tuning Help Needed HPT 3 Bar OS I have just installed a gen3 4.8 out of a Silverado in my Fox Mustang. Engine has Pac1218 valve springs, 80lb Siemens Deka injectors, and TR6 plugs gapped to 0.025. I upgraded to the 3 bar OS, and then did a 4l80e segment. I borrowed a tune from Sloppy Mechanics for a setup that sounds nearly identical, and copied everything over that looked important.
I verified that the injectors are pulsing. I checked at the coil connectors and there is Power and Ground. The grounds at the back of each head are connected, and the grounds on the side and back of the block are connected. VATS are disabled. I logged cam and crank which are both doing something but I'm not sure if they are correct. I have tried everything I can think of, but have had almost no success. I was able to get it to start and run for about 2 seconds and then it died and never started again.
One thing that I cant figure out is that in other tunes, I have seen the firing order was different. It was the same order except it started at 3 instead of 1. I tried changing it and then changed it back, but it didn't make a difference either way. I have attached the tune, log, and config. I am new to tuning, and seem to know just enough to get myself in trouble. I'm only posting in the boosted section because the setup is so similar to what a lot of the boosted guys are running, but if this needs moved, that's fine. Someone Please Help! Thanks!
I verified that the injectors are pulsing. I checked at the coil connectors and there is Power and Ground. The grounds at the back of each head are connected, and the grounds on the side and back of the block are connected. VATS are disabled. I logged cam and crank which are both doing something but I'm not sure if they are correct. I have tried everything I can think of, but have had almost no success. I was able to get it to start and run for about 2 seconds and then it died and never started again.
One thing that I cant figure out is that in other tunes, I have seen the firing order was different. It was the same order except it started at 3 instead of 1. I tried changing it and then changed it back, but it didn't make a difference either way. I have attached the tune, log, and config. I am new to tuning, and seem to know just enough to get myself in trouble. I'm only posting in the boosted section because the setup is so similar to what a lot of the boosted guys are running, but if this needs moved, that's fine. Someone Please Help! Thanks!
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Im going through the same thing.
Using the fairmont 3 tune. Opened in compare mode akd copied everything over. Fires right up, stumbles and dies.
My OS is a 2006 and I noticed there are a lot of things different between the 2 tunes. For example, there are dozens of tables that i cant open in compare mode. It wont let me switch over to the F3 tune in compare mode. When I open them separate, i notice that the table resolution is a lot different. So I had to manually enter of lot of stuff.
This is my first time with an 05+ ECU in HPTuners and it doesnt support real time tuning, which SUCKS.
Using the fairmont 3 tune. Opened in compare mode akd copied everything over. Fires right up, stumbles and dies.
My OS is a 2006 and I noticed there are a lot of things different between the 2 tunes. For example, there are dozens of tables that i cant open in compare mode. It wont let me switch over to the F3 tune in compare mode. When I open them separate, i notice that the table resolution is a lot different. So I had to manually enter of lot of stuff.
This is my first time with an 05+ ECU in HPTuners and it doesnt support real time tuning, which SUCKS.
Thread Starter
Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
Im going through the same thing.
Using the fairmont 3 tune. Opened in compare mode akd copied everything over. Fires right up, stumbles and dies.
My OS is a 2006 and I noticed there are a lot of things different between the 2 tunes. For example, there are dozens of tables that i cant open in compare mode. It wont let me switch over to the F3 tune in compare mode. When I open them separate, i notice that the table resolution is a lot different. So I had to manually enter of lot of stuff.
This is my first time with an 05+ ECU in HPTuners and it doesnt support real time tuning, which SUCKS.
Using the fairmont 3 tune. Opened in compare mode akd copied everything over. Fires right up, stumbles and dies.
My OS is a 2006 and I noticed there are a lot of things different between the 2 tunes. For example, there are dozens of tables that i cant open in compare mode. It wont let me switch over to the F3 tune in compare mode. When I open them separate, i notice that the table resolution is a lot different. So I had to manually enter of lot of stuff.
This is my first time with an 05+ ECU in HPTuners and it doesnt support real time tuning, which SUCKS.
I don't much about the differences between the Years of ECM, but I have been reading a lot on the HPT Forum and I believe the problem that I have and the one you have are very Similar. I believe that we both have a problem with the MAF not failing. Because the MAF doesn't fail, the ECM Doesn't go into SD mode the Car won Run Right. With Yours, If You Can get it to run long enough it might switch over. Why mine wont Start I dont know yet. It did fire up once and ran great for two seconds so I know the engine is ok.
Thread Starter
Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
I've got the maf dtc's all set to "mil on first error" and the fail frequency set to 0. I wonder if I should bump that up just a bit. I don't have "non-emissions" as an option
TECH Enthusiast
Joined: Nov 2005
Posts: 747
Likes: 18
You're running the 3 bar OS correct? Shouldn't have to fail the maf since it runs strictly VE unless my car is a freak of nature.
Have a wideband in there to verify fuel is going through? In my experience with swaps/tunes that start then die they usually are lacking start up fuel.
Did do a full write correct?
Have a wideband in there to verify fuel is going through? In my experience with swaps/tunes that start then die they usually are lacking start up fuel.
Did do a full write correct?
Thread Starter
Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
You're running the 3 bar OS correct? Shouldn't have to fail the maf since it runs strictly VE unless my car is a freak of nature.
Have a wideband in there to verify fuel is going through? In my experience with swaps/tunes that start then die they usually are lacking start up fuel.
Did do a full write correct?
Have a wideband in there to verify fuel is going through? In my experience with swaps/tunes that start then die they usually are lacking start up fuel.
Did do a full write correct?
The wideband will be in the down pipe and the turbo isn't installed. I can smell a lot of fuel in the exhaust though and I've pulled the injectors and rails and they are spraying a lot of fuel. When I pull a spark plug I can't see the spark but I have it gapped pretty tight and I'm not sure if I would see it anyway. I've verified all powers and grounds on the coils. I think it's in the tune, but I'm kinda stumped right now.
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Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Pull a plug, clip it into the plug wire, lay the threads of the plug across something metal and have someone crank it over. If its sparking, it will be very bright and very obvious, even with a small plug gap.
I got mine to fire. Tune was pretty good, it ended up being a bad ground on the MAP sensor. Now it fires up and runs, although a little rough.
I got mine to fire. Tune was pretty good, it ended up being a bad ground on the MAP sensor. Now it fires up and runs, although a little rough.
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Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
Pull a plug, clip it into the plug wire, lay the threads of the plug across something metal and have someone crank it over. If its sparking, it will be very bright and very obvious, even with a small plug gap.
I got mine to fire. Tune was pretty good, it ended up being a bad ground on the MAP sensor. Now it fires up and runs, although a little rough.
I got mine to fire. Tune was pretty good, it ended up being a bad ground on the MAP sensor. Now it fires up and runs, although a little rough.
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Did you load up the Fairmont 3 tune, or did you copy everything over in compare mode?
Open everything in compare mode and check the tabs at the top. If the original, compare file, and difference tabs are grey, the tables are different between the 2 tunes and can't be copied directly. I had a dozen of these when trying to load up the Fairmont 3 tune so I had to load up the Fairmont 3 tune and export the tables and then load them into my tune. Others I had to manually enter the info in, but watch the scaling since it'll likely be off a little. Mine went every 10*, the Fairmont 3 tune didn't.
Open everything in compare mode and check the tabs at the top. If the original, compare file, and difference tabs are grey, the tables are different between the 2 tunes and can't be copied directly. I had a dozen of these when trying to load up the Fairmont 3 tune so I had to load up the Fairmont 3 tune and export the tables and then load them into my tune. Others I had to manually enter the info in, but watch the scaling since it'll likely be off a little. Mine went every 10*, the Fairmont 3 tune didn't.
Thread Starter
Staging Lane
Joined: Nov 2012
Posts: 82
Likes: 0
From: Vernal, Utah
Dang, I've got a lot to learn in this still. I just manually copied everything over in each table, but I didn't watch the scaling. I better go back and check everything. looking at the logs now I see that while trying to start I show negative 15psi oil pressure and that it is constantly in 2nd gear. I would think either of these could keep it from starting. I've got some troubleshooting to do.