p0299 and a possible cure??

[hasselbach]

If the 0299 is a low boost fooling code, and my boost fooler doesn't work since I keep getting the codes after installing a SPS 66, I've heard some say wire up the stock solenoid and wire tie it to the side.



But, I think this still won't work since the solenoid won't be reading any boost and continue to throw codes.



My thought is, could you weld the piece that is in the stock turbo to the intercooler, and install the solenoid there? (obviously destroying the inlet to the stock compressor). That way the solenoid would read some pressure on the turbo side again. .

 

[jwilliams3]

I run the stock solenoid tied to the frame. Just threw a 299 on the way home about an hour ago.

 

[hasselbach]

I run the stock solenoid tied to the frame. Just threw a 299 on the way home about an hour ago.

I think it is because the stock solenoid is reading no boost. I am going to try using HTT's boost fooler, and it that doesn't work, I am going to butcher my stock turbo, and tig the mount to the intercooler and hook up the solenoid that way. . so it reads something.

 

[jwilliams3]

Its not the boost foolers fault, they are doing their job.

You use the II boost fooler, I use the solenoid and we both throw 299's.



If you want that solenoid to read boost just unscrew it from the turbo then run a split line/air hose from your II wastegate activator supply line and clamp a collecting hose over the controller so it will see boost.



You dont need to cut into your intercooler.

 

[hasselbach]

Its not the boost foolers fault, they are doing their job.

You use the II boost fooler, I use the solenoid and we both throw 299's.



If you want that solenoid to read boost just unscrew it from the turbo then run a split line/air hose from your II wastegate activator supply line and clamp a collecting hose over the controller so it will see boost.



You dont need to cut into your intercooler.

If you look at the solenoid, there are three o-rings. There is a probe at one end, then between two o-rings, two holes for the pressure to enter, then a third o-ring with more holes around it.



I'm not sure simply installing a hose over the fitting will work. I think the fitting on the turbo may be designed to make the solenoid to read a certain way...



Since I already screwed up my stock turbo, cutting out the fitting is no big issue. Tigging it to the intercooler is easy, and then only a 1/8 inch hole is needed to make it work.



Thoughts?

 

[hasselbach]

Looking at the solenoid, I don't think it reads boost, it only acts as a swtich to control the wastegate.



In anyevent, is anyone else getting these 0299's now? I throw one every day, and it is a pain to cycle them out of the computer.



Thanks

 

[Evan A. Beck]

It does not read boost. Its only a controller.



Leave the solenoid plugged in, tape up the end on it, and use a couple cable ties to secure it out of the way. Done this on a bunch of trucks we've done turbo upgrades on, with no codes or check engine lights.

 

[hasselbach]

It does not read boost. Its only a controller.



Leave the solenoid plugged in, tape up the end on it, and use a couple cable ties to secure it out of the way. Done this on a bunch of trucks we've done turbo upgrades on, with no codes or check engine lights.

I think JWilliams responded that he did what you suggested, and still got a code. But I'll try your method as well.



My guess is the big turbo is not producing boost at cruise speeds, and the MAP is sensing a leak, so the boost fooler I've installed may not work.



Were the turbos that you installed on 05's and were the turbos as large as say a 66?



Thanks

 

[lmills]

no code here. as for no boost while running, I don't believe that to be the case. I have two steep mountain inclines that I coast down every day both going to work and coming home. Most of the time I am running 75 MPH with my foot totally off the throttle and zero boost for 2-3 miles at a time and have never set the code.

 

[GWoody]

I bought my boost fooler, the thingy that plugs into the plug that went to the factory turbo, from Piers, they must be designed a little different, never throws a code. I'm running a HTT 62/12. Hits 55lbs all the time.

 

[jwilliams3]

Gwoody,

The 0299 will not hit on 62/12 turbos.

I ran the B104 with the 62/12 and never had a problem.



When I started running the 66/14 is when I started getting the 0299.

You dont have anything to worry about.



We are also not throwing the 299 because of high boost.

Infact, I dont know why we are throwing 299's.

It definitely isnt when we are boosting high, mostly when we are just cruising along under 10 psi.

 

[hasselbach]

no code here. as for no boost while running, I don't believe that to be the case. I have two steep mountain inclines that I coast down every day both going to work and coming home. Most of the time I am running 75 MPH with my foot totally off the throttle and zero boost for 2-3 miles at a time and have never set the code.

Going down hills the computer would see no load to the engine. I'm thinking at 65 mph at 10% load, and 2 psi vs. the old 5-6 psi, computer says "hey, we have a leak"

 

[hasselbach]

64-66 then?

Gwoody,

The 0299 will not hit on 62/12 turbos.

I ran the B104 with the 62/12 and never had a problem.



When I started running the 66/14 is when I started getting the 0299.

You dont have anything to worry about.



We are also not throwing the 299 because of high boost.

Infact, I dont know why we are throwing 299's.

It definitely isnt when we are boost high, mostly when we are just cruising along under 10 psi.

You think if I went down to a 64-14 I'd be rid of the 0299 issue then?

 

[jwilliams3]

I dont know. Try it, let us know how it goes.

 

[hasselbach]

I dont know. Try it, let us know how it goes.

Nah, you first... :-laf



I just may end up taking a trip to II in Utah and swap in a 64... (yeah, and maybe drop over to edge and upgrade to the hot juice... )

 

[T&Gauto]

64-14 Throws Code 0299 Also Just Had It Happen And Started Lookin To See What It Was Had My Turbo On For 2 Weeks Now W/boost Fooler Gonig To Cycle The Key A Few Hundred Times To See If It Will Go Away

 

[jwilliams3]

Get a downloader to clear it. .

 

[Devan Manis]

Can any one that throws the 299 code consistently get a freeze frame from it? and if so maybe write down all the conditions when it trips, find whats causing it, then if we can find whats causing it we can begin to work on a fix. i think hasselbach is on to something when he said

My guess is the big turbo is not producing boost at cruise speeds, and the MAP is sensing a leak.

and when he said

Going down hills the computer would see no load to the engine. I'm thinking at 65 mph at 10% load, and 2 psi vs. the old 5-6 psi, computer says "hey, we have a leak"

 

[ElkFarmer]

My 05 tripped the 0299 code this past weekend in the middle of nowhere. It has the 62/12 turbo. Just got off the phone with HTT and they seem to think it is a mass airflow sensor problem. The problem seems to be from the sensor on the air box. I got the boost fooler and it still tripped. Doesn't seem to have a problem while not on cruise. Put it on cruise, put around and it will trip. They said they will get back to me. Meanwhile, I guess I will find a programmer to clear the code until a fix surfaces.

 

[Mike B.]

Good luck fellas.



My 06 has been doing this off and on for the last 28k miles. Sometime it has gone as far as 2500 miles before dropping a code. Other times it happens as soon as 250 miles.

The freeze frame data never matches the speeds or conditions at the time the cel comes on and defuels the engine. Most of the time it shows the speed as 70 -75 mph even though I was only going 15 when the light came on. Only a handfull of times has it gone of at highway speeds. When it does it is always when I'm off the throttle or maybe just maintaining speed. It has never gone of while the coals are lit. .



Rainy days or days with high humidity seem to be the days when I'll trip a code. Not that it doesn't happen on good weather days also but I think no so often. Cleaning all the plugs may or may not help.



At this point I just live with it and keep telling myself that maybe the Smarty will fix it. That is of course if a smarty for the 06 trucks ever rolls out. I know it sucks but the power from the big charger is just too cool.



Mike