About my car and problems I fixed and need to do
his is whats going on with my car..
Day 1
Ok here are the issues...when there's a cold start i have to tap the gas to stay on.at first then it idles rough..if i dont it sounds like its running on 3 cylinders
then dies..after that its fine....the vac pres would be at 20 vac at 800-1k but then it drops to 400-300k the the vac drops to 12-13..I did pressure test the system i found leaks and fixed it ...BUT when i pressure to system to 20-25 i get a leak at the adj FPR it seems the it leaks a lil at the top bolt to hold the adjustment....engine comp is good,i adjusted idle but still happens..timing is good.and i change the temp senor..spark plugs i have to double check...in themorning before i start the car to see if its wet with fuel...does this sound like a leaky injector...any thoughts?
k..i readup on doing that but im a lil shaky on it its just the 3 or 4 bolts holding it down...then pull on the rail to expose the injectors...next but a towel under the injectors then turn the ignition to on ...im i missing anything? like if i take the rail out would it be difficult to put back in?i can do this now but im at my job and i don't want to get stuck at my job...
k.. i pulled the rail and non of the injectors were leaking ...but i did notice one spacer is missing..the one next the injector 3 ..and injector 2 was replaced..because all on the injectors are grey and # 2 is purple...i know purple injectors r 370's so what are greys...and what if they but na injectors in wouldn't the car not run..if its a u13 ecu since its set to 370?
and should i pull the rail again when the car is cold to see if that makes a dif since at cold starts this happens...but at the same time i have that idle problem im a pressure test it again..im just gonna cap the fpr..to see if i have anymore vac leaks
day 2
Ok there no codes..tps is new and set to .50..the maf i swapped out no difference in idle..temp sensor is good.ICAV is good ..the 02 i will have to test that..and with the adjustable fpr its basicly new...is this common to happen with these..and how would i fix it...
day 3
ok idles is getting much better ...i cut a thin slice of vac. hose then put oil on it so when i tight the screw its wouldn't rip...worked like a charm...car is started to idle much better this weekend im swapping a new t-25 since the turbo whines and the act. leaks and a new 02 sensor ...question part # for a skinny o2 from a 89 300zx...i have and new o2 that i have to slice a new connector on and plus where can i buy a a cover for the wires for the heat...? btw i did another compression check and as i stated earlier the car had 3 grey injector clips and one had a purple...i believe there 330cc(grey) injectors...and my 134 piston where around 142-147 and my 2nd piston was 155 so that helped a lot two...so due to my act. leaking i wasn't getting all boost which helped me not det. under boost do to the small injectors...but it def showed wear on the motor from this...once i found that out i def fixed *** asap.the cars runs so much smoother now I cant wait to the weekend hopefully its gonna be nice ..tomorrow starts prepping the turbo ..knowledge will save you money on the long run...
List of things i fixed in the car so far ...that the last owner did not do...
new pcv,new dist,took over 10feet of extra wire that was not used...carbon fiber hood..injectors.. location of gauges, new steering wheel...tranny swap..clutch..flywheel..fluids...cleaned engine bay , new cleaner door panels,300zx shift knob,new boost controller location and upgraded it,new tensioner,aligned timing since the timing was off when i got the car,list keeps getting longer...im basicly almost rebuilding the car slowly...
Need to be done:
Turbo swap,o2 swap,water pump,suspension(i have the struts in my room AGX kyb adjustables and soon the get springs road magnets,koni shorted bump stops.)alternator,power steering delete,upgraded cam jwt S4's, Upgraded ecu,with afc to fine tune, one day if i take the motor out ill do the oil pump to a ve oil pump...more oil pressureaxle and rotors,brake fluid flush,unjam my rear brakes so i can have my hand brake back...(thats next )....more to come to make my d.d more healthier..
And if anyone needs help with a 1991-1994 sentra or a b14 pm me...
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