im still having all the same problems

[mean green s14]

my car still has the bogging problem and recently i got a 1105 code (vehicle specific dtc)

what does this mean?

[NISTECH]

is that a P1105? Or just 1105?

[mean green s14]

p1105

[NISTECH]

map/ baro solonoid. either it is not sensing much of a different between manifold pressure and absolute pressure on the sensor which it is determining the solonoid is not functioning properly or the solonoid voltage is out of spec when the ecm trys to operate it. Now this may be an erronous code since you are having drivability issues related to accel which could mean a restricted exhaust since manifold vaccum will drop off when the exhuast is restricte. When a vaccum exists the engine is drawing in air to run. which means it has to be "exhuasting" the air somewhere else that would be through the exhuast. if you were to shove a potato in your tail pipe once the pressure built up your vaccum would start dropping off cause the engine cant take in as much air as it was due to the back up. kinda like constapation!! get a vaccum gauge T'd into a ported vaccum source like your F/P reg. Take it for a drive and see what the vaccum does at a steady cruise of say 60mph. see if it will maintain around 15 to 20 inches of vaccum. when you snap the throttle it will drop to about 5 inches but if you give it part throttle it should not drop that low. this indicates a restriction in your exhuast if it does. Typically thermal melt down of the cat is the cause.

[mean green s14]

im not running a cat, im running a 3inch downpipe to a 2.5 inch staight pipe to a 3inch cat back. before the downpipe its a revhard manifold and a t04 turbo. on my boost gauge the vacum seems to be normal and my bogging only happens when i hit boost, or it even seems like it will bog if i give it over about 3 quarter throttle, it stumbles at idle too, and im thinking maybee a throttle position sensore is bad but i thought i would get a check engine light and a code for that.

[NISTECH]

well the code you did get is not related to engine control it is souly used for OBDII diagnostic purposes.Related to EVAP system. You did the vaccum check while driving with a diagnostic vaccum gauge? Tps will not cause the car to bog. Did you ever check your MAF voltages?

[mean green s14]

in the last month ive put in a new maf sensore , a new set of injectors and 0-rings, cap , rotor, doy you think a cloged fuel filter or improperly gapped plugs could cuase my car to bog so bad it wont rev at about 1/2 throttle?

[NISTECH]

was the MAF new or used?To do a test to find out if it is a fuel loss problem get a fuel gauge hooked up between the fuel filter and the rail and moniter it under the bog conditions. If it drop off yes its a lack of fuel pressure.