Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

01 s40 turbo surging idle and p0236 code

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Old 02-09-2019, 03:15 PM
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Default 01 s40 turbo surging idle and p0236 code

Ok i bought a salvaged 2001 s40 1.9t so far since buying it "not running" ive replaced the battery, the starter, the tcv near the air box, the map on the intake manifold, maf sensor, rewired the coil pack harness changed some hoses, changed burnt fuses got the headlight low beam to work and trunk to open ive cleaned the pcv system and throttle body with all the right tools and cleaners and changed the neg battery wire is was funky.. My problem is i still have codes p0236 for map sensor boost map that ive changed and some generic p0700 for the trans. When in drive after the car is warm at a stop it will almost misfire it seems to bog down and drop idle and rpms really violently so i parked the car turned it on at home and revved the engine from in the bay using the throttle cable it seems to dip way to low on the rpms and almost dies. Idk what else to do my other car was a jap g35 so im new to these turbo volvos if anyone could help it would be massively appreciated ive been working this car from death for 6 weeks now and need to get the cel to go away so i can register it. Pic just cuz
 
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