02-08-2022,
(02-08-2022 )SemiSweet Wrote: [ -> ]I’m sure you have checked or replaced your air filters?
Air filters look clean, also the Restriction gauge does not show any vacuum
(02-08-2022 )SemiSweet Wrote: [ -> ]I’m sure you have checked or replaced your air filters?
(02-08-2022 )Rawze Wrote: [ -> ]fuel mileage problems aside...
A CM2250 should peak at about 36 psi or so boost. If your only getting 30 psi boost then something is wrong.
Just some guesses here ...
* could be an improperly reading exhaust gas pressure sensor, or its circuit from the manifold thru the thermostat housing is clogged up. This can cause both power, boost, and fuel mileage problems, depending on how bad it is.
* Can be that the Turbo is not adjusted high enough in the program for the make/model truck you have.
* Can be that the ecm is holding back power/torque for one reason or another (can be seen by monitoring the 'CBL_Fuel_State' setting to see if it is following the torque curve of the engine, the accelerator pedal.. or if it has a fuel derate of some kind.
* Can be a damaged exhaust turbine in the turbo, an inlet, CAC or exhaust restriction, etc.. (something turbo or air related). Could also be a boost, exhaust manifold, or egr circuit leak somewhere. Can also be the turbo out of calibration, or has issues with its control arm.
* Can be something wrong with the fuel system, not allowing it to get full fuel.
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Lower than normal fuel mileage issues can be caused by a thousand different things. Does the trip fuel mileage in the dash match the actual fuel mileage on paper at the pump after it has been reset and run for a week or so?.
(02-08-2022 )Truckdriven Wrote: [ -> ]...
As far as exhaust pressure reading I replaced the sensor and the tube and it seems to be reading properly at atmospheric pressure. The old tube was not clogged I could blow air through yet
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Quote:...
remove the sensor and plug it back into the harness ... spray moderate amount of brake cleaner into the hole where it mounts... crank truck to see if the brake cleaner comes blasting back up out of the hole.
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(02-09-2022 )Truckdriven Wrote: [ -> ]I did verify the exhaust circuit in the thermostat housing was cleaned through.
I do not have a pyro but would like to add one where should it be mounted before or after Turbo??
(02-08-2022 )Rawze Wrote: [ -> ]* Can be that the ecm is holding back power/torque for one reason or another (can be seen by monitoring the 'CBL_Fuel_State' setting to see if it is following the torque curve of the engine, the accelerator pedal.. or if it has a fuel derate of some kind.Would I check this with insite or calterm?
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(02-09-2022 )Truckdriven Wrote: [ -> ](02-08-2022 )Rawze Wrote: [ -> ]* Can be that the ecm is holding back power/torque for one reason or another (can be seen by monitoring the 'CBL_Fuel_State' setting to see if it is following the torque curve of the engine, the accelerator pedal.. or if it has a fuel derate of some kind.Would I check this with insite or calterm?
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