turbo problems

[banke]

hi all , iv just fitted my turbo kit , evrything is wired up and the fuleing is connected,

when i try to start the car is try's to tik over but it has no idle , it will run if i press the gas but as soon as i lift my foot it just dies , , :wall::wall:

any ideas ???

thanks:y:

[blackie_2k5]

did it run before? in your possesion, have you changed inlet, have you tried keeping it runiing till it warms up on low revs?

[Sophia_Bush]

sounds like something ain't connected or there may be an air leak check the wiring you have done for the mf2/sigcon and wires are not loose and all sensors are ok

[Michael86]

Check your piping from i/c mate, my s13 done that when I didnt have it on properly.
Have you fitter a 5th injector or uprated ones? could be struggling to fuel correctly.

[camTcar]

i wish i had a turbo so i could comment and give advice

[banke]

the fuleing is all connected right and ther is no leaks , the pipeing is sound and the boost is not leaking out, the only thing i can think is the map sencer, ,

[Michael86]

fuel pump may need upgrade or like you say the sensor.
try the old fashion way, hit it with a hammer and itl work lol, jokes

[banke]

and yes it ran before the kit was fitted

[banke]

fuel pump may need upgrade or like you say the sensor.
try the old fashion way, hit it with a hammer and itl work lol, jokes

i might just try that mate :y:
cheers :D

[Michael86]

Na reason im sticking to fueling is because i had an s13 last year and was using it for track use.
had a problem like yours and couldnt find the problem.
1 problem was that the fuel pump wasnt giving enough for the engine upgrade.
i sorted that out but then the tubby packed in on my so i hit the car with a sledge and left it in the garage.

[banke]

haha talk about anger issues , , ill take a look into it mats thanks , ,

what fule pump do you recomend ?

[Michael86]

for a saxo i have not got a clue, i had a walbro on my s13 but u can get bosche ones too.
depends what your running under that bonnet. each engine is different.

im new to saxos so thats y i can only giv limited info.

[banke]

no worries mate , im shure i can find out on hear somewer,

cheers

[gixxa]

doubt it is fuel pump as there is very little fuel needed to idle, so if it works fine with revs it should should be more then capable at idle.

Have you fitted a sigcon, if so the map sensor correctment could be out.

Try it with the idle valve unplugged.

Try resetting the ecu

[banke]

witch one is the idle valve ?? , is it the one on the bottom of the throttlobody ?

[gixxa]

just noticed you have to many valves so dont know were it is

[blackie_2k5]

any chance theres a leak from the vaccum pipes and dump valve, could be a cause

[banke]

right the car is now running and idleing but its very ruf , , the map sencer is not connected, so if the car comes on boost heavy it bogs down , im going to see if i can wire up the map sencer in the morning

[turbodoctor]

just put it back to standard ie map sensor and unplug 5th injector it will run fine if it did before !then go from there do it step by step boost leack will do fuck all cos they dont run a maf pal!!;);)

[banke]

right the problem is back !!!

its not tikking over . well it tries but it just dies !

im compleatly outa ideas now

[Kman]

have you had it running at all? if so how did it drive???

[banke]

have you had it running at all? if so how did it drive???

yea mate it was running fine then i took it out for a testdrive, got back then about an hour later tryd to start it and ther was no idle:wall::wall:

i cant tell you how it drove on boost mate because i kept it off boost while i was out.:homme: haha

[Kman]

are all the vacume hoses from the old air box and sensor all reconnected??? have you got a boost gauge?? if so does it move at all when you try to start the car??

[banke]

yea the boost guage works , all the vacume hoses are connected -waste gate,d-valve and map sencer so all i can put it down to is the fuleing side !!

[Kman]

whats controlling your fuelling?

[banke]

mf2/sigcon mate with the 5th injector

[raunchz]

mf2/sigcon mate with the 5th injector

Sounds like this needs setting up properly.

Might be worth getting a wideband to see what your afr is doing before it leads to worse problems

[banke]

Sounds like this needs setting up properly.

Might be worth getting a wideband to see what your afr is doing before it leads to worse problems

got a call of gmc this morning and i have a inovate lc-1 on the way so il be looking at the afr sometime in the week , but it should tick over even if the fuleing is off a little

[r33ryan]

ive been tuning jap turbo cars for a few years now, ive had this trouble with my last skyline, i blew the turbo on it, got another turbo fitted it put everything back and double checked.
turned the engine over had no idle found i left a vacum hose off put it back on still no idle. played about and it started run really rough tho hence the similaritys. ended up finding out i melted a piston when turbo went or before. i no you prob havnt blown your turbo up but a compression test wouldnt go a miss, if all the basic thing are ok its got to be something more serious, did u do a rebuild before conversion

[Kman]

yeah it should tick over atleast i havent fitted a 5th injector yet but mine starts up first time every time... have you wired the sigcon properly? maybee try removing your 5th injector kit and try and start it if it starts it may be down to that?? worth a fiddle tho..

[Sophia_Bush]

His car was fine before all he has done is bolted the kit on.

I would say check all sensors and double double check make sure it is all connected up no leaks etc.

Also as said may be case of mf2/sigcon values being off

[scot-ish]

pull a plug out, and see if the cylinder is reaking of fuel, sounds to me like its overfueling, and bogging down,

who set the mf2 sigcon up? could just be pouring fuel out of the 5th injector

unplug the 5th injector setup and give it a try, shouldt cause to much damage if your just making sure

what does the boost gauge read when its idling??

[banke]

il get the compession tested in the morning , and the boost guege reads negative preasure wen it was tiking over.

will pull the sigcon off and see if it runns without that ,

[banke]

just unpluged the 5th njector and still no idle , , i thing its the sicgon/mf2 but will make shure tomorrow . . im wondering if i should go pred or not now ???

[scot-ish]

negative mate yeh,but by how much, is it a full vacuum??

its obv the mf2/sigcon if you have deffo no vac leak, and all sensors are connected up properly

[banke]

100% no vak leak mate

[Kman]

let us no how you get on and if you manage to get it sorted....

[banke]

let us no how you get on and if you manage to get it sorted....

will do mate , im determend to get it sorted by the 8th !!!

[Kman]

why the 8th???

[banke]

why the 8th???

Because ther is a meet on the 8th !!!!and i dont want to miss it !

[banke]

right im going to blow it up in a min , , , could this no idle problem be caused by a vac leak ???