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View Full Version : Sr20det s14a splutter bogging down on throttle


Shanedixons14a
03-08-2015, 05:38 PM
Beeen having some problems with my car its been bogging down through the whole rev range it feels better if i am easier on the throttle . It was boosting late so i put a new fmic on thinking it would solve the problem in that time frame i had the battery relocated to the boot proffessionally and a new rad thermostat and cowling i also rmobed the carbon canister and air con has been bungged at the inlet i moved my earth in the engine bay as it was in my way. i took the car out for a drive and it started boging out and being hesitant so i changed the spark plugs pre gapped by garage d , checked coils , boost leaked tested the whole system it was perfect but for some reason its still doin it and i cant find to the life of me what is wrong the modifications on the car are

Walbro pump installed a few days before all the problems but was fine on boost just late boost as it always had due to wing mount cracked
Apex cat back exhaust
Apex air filter
Fmic
Mishimoto rad fan cowling and race thermostat

Cars still running standard boost and standard map the problem started when i replaced the rad , fans , thermo and removed air con and carbon canister alao i installed a fmic and moved my battery earth so surely it has something to with all that right ? It doesnt idle funny sometimes if i rev it it drops stays at 1300 revs for 2 seconds then drops to wher it should sit 900 ish
Since the problem i have boost leak tested it no problems ther, chaned pluggs pre gapped by garage d, checked for split hoses , unpluged maff to no avail bypassed boost limiter , checked coilpacks does anyone have any suggestions ?