missouriman

how do you fix this.
it is on a stock 2002
put in the juice with attitude monitor and my boost go's up to 40 to 45?

thanks for your help.

matthais

adjust your waste gate

missouriman

how do you do that?
do you make the rod longer or shorter.
looks like it is hard to get to.
I have found pictures of it that is about it.
the canister is it pushed or pulled?
and is it pushed or pulled open or shut?

I don't know how it works so I am not sure how to figure out how to test it or what to look for.

why would it need an adjustment?
is there a diaphragm or some thing in it that would make it stop working?
do you just replace the canister looking part? how much would one be and where would you start to look for it? I could not find it on napa's web site. I was hopeing to see how it is put together.

is this common? this is my first turbo truck, first diesel.

total newbie, I tried the search on here but found nothing.

a diagram of it would sure help if you have one to share.

thank you for your time.

matthais

what kind of turbo is on the truck? 40+ boost seems high without injectors.I would call edge. A waste gate is normaly closed intell the diaphram reeds adjusted boost and pulls to dump. I can tell you how to do it but its hard to explain alot to type. the cannister LOOKING part is the wastegate diaphram. set your max boost alert on the edge to 35 psi boost

missouriman

will the edge adjust the boost?
it is alarming is why I am concerned.
it is set at 35, should I set it lower?
I saw it read 40 on the boost, about 3/4 throttle, on setting 3 (drive), just after the converter locked up at around 60 I got on it a little bit. 3/4 that is.
fueling is set at 3, fuel pressure is reading 15.
the truck has the juice, new fass 100 lift pump and I had the 4 inch mbrp exhaust put on it.

I think the gate is stuck shut.
I don't want to blow a head gasket or some thing else.
it is the stock turbo and gate as far as I know.
200,000 on the truck.

my plan in the morning is to try to reach the rod and see if I can move it back an forth.
the line going to it is that a pressure or vacuum line?

this is the thread where I found a picture of it... that is it right?
first picture in the thread.
ps not my turbo.

http://www.plowsite.com/showthread.php?p=974244

JMJ

Sounds to me that your waste gate is stuck shut, the rod extends to open and retracts to close. Cant really tell you how to un-stick it though. i had other issues with my turbo, threw it on the bench in the garage and put a Super B in its place. Someone thats been there and done that will probably be along with some advice.

nickg

I have 80hp injectors, j/A and on level 6 to the floor I cant get much over 30psi! my wastegate is lock wired shut as well, and there are NO boost leaks (homemade checker held till 25psi, then blew the caps off).

maybe mine is the exception...

if you set the edge to 35 psi or so it will defuel and keep the boost within the limit you set,


just thought of something, in the menu screen there is a selection for yr of truck, I cant remember what its defaulted to or if it even makes a difference, but something to check...barring that I'd call edge, cause something dont sound right. you could also hook up a temp mechanical boost gauge to compare, could be your MAP sensor is at fault giving the high readings, when infact your not actually making that kind of boost

missouriman

I checked the year setting and set it to the 2002 model.
humm it was set the the other setting 95 to 2001?
maybe I should try setting it back to that. maybe I have one of those between year trucks. I will have to check the manufacture date again.
I am pretty sure it was early 2002. so it should be a 2002 right?
title and user manual in the glove box all say 2002.

any idea of a change date or something along those lines?

so if it extends to release pressure then that must be a pressure line going to it.
maybe if the rod moves I will try some air pressure to it and check the diaphragm that way.

JMJ

I would also second the possibility of a faulty reading from the map sensor, I for got about the attitude monitor reading off of the map sensor. I do know though that with just my EZ and 80 horse injectors i could get my HY-35 (which is what his 02 has) between 35# and 38# of boost, so it didnt sound too unreasonable to pull those numbers with a J/A

missouriman

over boost was one of the codes when I found my lift pump had gone out.
that is why I am worried about it.
I will check to see if the rod moves. if so I will try some air pressure to that line and see if that moves the lever.
I will post back with what I find.

so if it is jammed or leaking I am guessing that you have to replace it right?
I mean that there is no easy trick fix for it.

matthais

he has stock injectors! also locking up the tq converter at 60 this will put a hell of a load on the engine causing boost. check your map sensor plug. If its unplugged or broken it will throw those codes and cause over boosting but I dont think it would register on the edge. you must regulate the air pressure to the wastegate or you will tear the diaphram. also check and make sure someone didnt block off the wastegate line or plug it somehow, I have seen people put a bb inside the vac line so no one would see it.

missouriman

yes stock injectors.
where is this map plug located?
I was going to be carefull with the air pressure.
just a bit from a blow gun at 20 psi or so just to see if it moves and holds.

as for the lock up that is what I am guessing.
had over drive turned off and (felt) it hook up.
I don't have a lock switch or any thing like that.

what is wrong with stock injectors? I am not raceing it.
I have not seen the egt over 1000 yet.

matthais

nothing wrong with stock injectors at all, but with stockers turbo usually wont boost that high. unless wastegate is sticking or failed since you had the over boost code. Im thinking your wastegate is sticking or blocked off. check the vac lines on the diaphram make sure there not blocked off, this will cause the wastegate to not open correctly. best thing is to check wastegate with regulated air pressure it should move when it hits the recomended boost setting adjusted on the screw.

matthais

your on the right track, here is a vid on adjusting a wastegate. its not a cummins but its the same princible http://www.tuneyfish.com/video_player.php?vid=235

missouriman

at what pressure should it be opening?
thanks for the link.