Volvo d13 no boost

strange problem have never actually seen an ecm go bad in that matter before, specially when truck does show boost, is the boost gauge installed mechanical or OEM in the dash. boost sensor runs on same circuit with a few other sensors so if anything could go bad i would put it on the wiring before i would put it on ecm .

 

yes there is an option for it, but it doesn't make sense that you have mechanical boost but not electrical this is not logical. there has to be something else going on, i've never seen any of these ecms go bad so this is even the stranger part, how is the engine wiring, even if the wiring is bad being that it is a volvo it would have thrown a code guaranteed for any wire being bad.

 

Hello I have a 2011 Volvo 670 I just replaced intake sensor, turbo speed sensor, injectors and cups, full service, fuel filter housing, fuel pressure sensor all done at volvo dealer in Windsor, On. Only codes coming at dealer are coolant level sensor and oil temp sensor I will be replacing the coolant level sensor when i get home and oil temp sensor at next service. I am getting horrible fuel mileage running at 5.2mpg right now. I did an egr dpf def delete to this truck. The problem I am having is very low boost either loaded or empty. I found a small leak on the exhaust side of the turbo will be replacing the clamp and gasket when I get home. Can anybody tell me what may be causing this.

 

I found it very common on the D13 for the intake manifold bolts to break. It blows the o-ring seal out and you lose boost between the intake and head. Look for missing bolts and soot marks on the head behind the intake manifold.

 

Thank you I will check it but I sprayed quick start all over the intake checking for a vacuum leak truck did not increase in rpm but i will take another look

 

I think the spray wont work on the pressure side because it will blow out the pressure ... and not suck

 

So I figured out my problem the not so smart mechanic that drilled the holes in the dpf left the cotton like material lining the filter instead of removing it so it clogged the dpf so i cleaned that up and drilled the filter out some more bypassed the scr all together and she's back to the way she should be hope this helps!!! Boost is back and fuel mileage way up!!

 

When you have this problem did you have back presure on the turbo making like helicopter sound, i have problem with boost not going more then 20 psi on the boost gauge not puling good on up hill, i check every thing on the truck and is ok, no explain wath is the problem.