ok guys i have a van aakens box that has the boost fooler built in and every once in a while if i really hammer it hard it while still pop the over boost code. im getting 26 psi pf boost . could this be just a weak map senser . even thow i changed the map senser out like 10k miles ago. or is my box messing up on me .

 

I have had an over boost code forever IMO if you don't have warranty issues it does not seem to have any ill effects on my rig. PS how much was a map sensor?

 

the warranty on this truck is long past i have over 122k on the truck . it doesnt mess with the way the truck runs just the light comes on and makes me nervous till i find out its the stinking over boost code again. the map senser was like 50 bucks if i remember right its been awhile since i changed it . i had that happen pre box . talk about making a guy nevous when it happened i didnt have gauges yet and i was sure that i had just taken out the vp44. till i went to auto zone and rented the scan tool .since these 99s you cant do the key trick.

 

when the code comes up how do you clear it?

 

i have been clearing it with a scan tool from auto zone .

 

where'd you get a map sensor for 50 bucks? I priced one and it was 97 dollars.

 

i got it from the local cummins dealer . dont quote me on the 50 bucks but i know it wasnt no 97 dollars . if i remember right i payed like 60 buck after taxes and had them ship it to me since they are like 60 miles from me .

 

what model van aaken box do you have?mine doesnt have the map sensor plug.only the one to the pump.these single plug models dont have a boost fooler built in,i get the over boost code all the time.with my wastegate disconected.if you have the single plug box you will need a boost fooler.or live with the codes.

 

it one of the newer ones that does have the boost fooler built in i dont remember what model it is for sure just that its one that has the boost fooler and its about two years old