Guys, i need help (Urgent)

[junyi]

Guys, my car cant start when the engine is cold. esp in the morning or after a long period parked at somewhere.

The only way to start was to hold onto the crank for almost 10 sec and once the engine starts, i got to rev my car if not it will jerk and die off almost immediatly.

I went to dianogis Its says "P0335 Crank Position Sensor Circuit maulfunction". But i change crank sensor liao still the same.. Main pain in the a*s is cold cannot start.. car feels like choking like tat.. then jerking and dies of... =.=" can someone help?

i been to 5 workshop le.. Done 3 times of OBD reading from 3 different shops all show the same thing. and still cannot fix it..

some says uniQ but i check using laptop and it shows that uniQ is working fine and has all the readings.. Crank sensor i also change le (was fine for 3days when the problem appears again).. Wiring for UniQ i also change le.. TB washed, MAF Cleaned..

any1 help pls..

but if car temp hot then the ECl will go off.. and can start normally.. Only cold sometimes cannot even force start..

If someone has this part of knowledge pls advise me..

[bengteck]

my understanding for P0335
Crankshaft Position (CKP) Sensor Circuit No Signal

so changing it do not restore the problem as indicate by the code

so only way for you, go direct to agent for full report
before commit any further

[airborne]

wat car you driving bro?

[UltraBear]

Guys, my car cant start when the engine is cold. esp in the morning or after a long period parked at somewhere.

The only way to start was to hold onto the crank for almost 10 sec and once the engine starts, i got to rev my car if not it will jerk and die off almost immediatly.

I went to dianogis Its says "P0335 Crank Position Sensor Circuit maulfunction". But i change crank sensor liao still the same.. Main pain in the a*s is cold cannot start.. car feels like choking like tat.. then jerking and dies of... =.=" can someone help?

i been to 5 workshop le.. Done 3 times of OBD reading from 3 different shops all show the same thing. and still cannot fix it..

some says uniQ but i check using laptop and it shows that uniQ is working fine and has all the readings.. Crank sensor i also change le (was fine for 3days when the problem appears again).. Wiring for UniQ i also change le.. TB washed, MAF Cleaned..

any1 help pls..

but if car temp hot then the ECl will go off.. and can start normally.. Only cold sometimes cannot even force start..

If someone has this part of knowledge pls advise me..

==> why dun you just temporary disable or remove unichip to double confirm if unichip is causing all these problem.... able to communicate with unichip doesn't mean its working 100%....

[Newbie2dr]

Guys, my car cant start when the engine is cold. esp in the morning or after a long period parked at somewhere.

The only way to start was to hold onto the crank for almost 10 sec and once the engine starts, i got to rev my car if not it will jerk and die off almost immediatly.

I went to dianogis Its says "P0335 Crank Position Sensor Circuit maulfunction". But i change crank sensor liao still the same.. Main pain in the a*s is cold cannot start.. car feels like choking like tat.. then jerking and dies of... =.=" can someone help?

i been to 5 workshop le.. Done 3 times of OBD reading from 3 different shops all show the same thing. and still cannot fix it..

wa old bird appear liao:) , How's your baby?:)everything ok?

some says uniQ but i check using laptop and it shows that uniQ is working fine and has all the readings.. Crank sensor i also change le (was fine for 3days when the problem appears again).. Wiring for UniQ i also change le.. TB washed, MAF Cleaned..

any1 help pls..

but if car temp hot then the ECl will go off.. and can start normally.. Only cold sometimes cannot even force start..

If someone has this part of knowledge pls advise me..

==> why dun you just temporary disable or remove unichip to double confirm if unichip is causing all these problem.... able to communicate with unichip doesn't mean its working 100%....

[glml]

agree with bro talking about disengaging unichip Q.. heard from some friends that unichip Q a lot of problems..

[Gresini]

Call all tuners/workshop and ask them the same question: Can u guarantee unichip Q suit my (make/model)?

Go to those who answer you yes, they WILL solve yr problem.

[daboy14]

Check first ur fuel lines.. Fuel filter and injectors maybe
dirty or busted thats y theres no continuation on the ignition
just the starter cranking up the the engine..

had the same problem before just overbhauled fuel lines,
replace filter and floe rate test the injectors seems like
injector # 3 nd 4 dont have same pulse as 1 nd 2.. Change
my injectors then all comes out well