turbo 420a keeps shutting off need help asap

[dsmking101]

i had this problem ever since i finished my turbo install the car will turn on good and idle for about 45 secounds or so then stutter and die then i will have to wait a couple minutes then crank it and itll turn back on with no problem and do the same thing afther a few secounds.......when i drive it drives perfect on the road but if i come to a stop itll stutter then die and wont turn back on intill a minute or 2 passes......when im driving its fine wont shut off its when i start to slow down then it stutters then dies ...i need help with this asap this is my daily driver thanks

 

[96_killer]

are you running megasqurit?

 

[dsmking101]

no not yet the car drives but will shut off at idle i have an fcd but havent properly installed it yet could this be why? if so i need a diagram or something to help me with the install....

 

[boosted99_420]

no not yet the car drives but will shut off at idle i have an fcd but havent properly installed it yet could this be why? if so i need a diagram or something to help me with the install....

List of mods you did to car during turbo install very important?

 

[dsmking101]

i did not do any major mods to the car as i installed my turbo the car runs fine and strong and healthy but as it sits at idle for a few secounds itll shut off then i have to wait about a minute or two just to turn it back on then while driving its fine as i start to slow down itll just start to stutter a lil then die as if i turn off the ignition.... my only gusse is that its hitting fuel cut i have not installed it yet this could be the issue......heres a pic maybe you guys can help me out with the fcd install that connects to our map sensor...

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ok i fixed the fcd i nstalled it like i was sappose to i used buttconnectors to do the install i tune it for 4.49 it wont let me go any highier then that but when i do blow into the map sensor it reads 4.55 4.53 4.51 but wont go highier then 4.65 but i drove the car and it drives nice but afther about a few minutes of driving it dies like not a ruff shut of itll just die the engine shuts down but starts right back up when i turn the key please help somebody i need help with this i dont what else to do

 

[boosted99_420]

Ok im gussin you got the 12:1 FPR, and 255lph HP fuel pump. You may just need to take it to a shop to get tuned.

 

[Locke]

There is nothing to tune when using a 12:1.

OP: Do you have (or can borrow) a logger to record some info when it dies?

 

[dsmking101]

no i dont have a logger but might be able to get one.... are you talking about the obd port logger to determine why its shutting off....i dont have a 12:1 fpr .....just a 12:1 fmu and 255 pump....i tuned my fcd a lil and it dosent shut off right away at idle like it did befor it idles good now but still shuts off it died on me when i was driving today and wont allow me to hit full boost past 5000 rpm why is this....

 

[boosted99_420]

hmm i would just check over every little inch of it for boost leaks, every little minor thing. And if worst comes to worst take it to a good shot that knows what they are doing.

 

[dsmking101]

so a boost leak can cause these problems how would a cheack for leaks...

 

[boosted99_420]

so a boost leak can cause these problems how would a cheack for leaks...

not sure how they would on a 420turbo but a 4g63 they would sometimes they did mine. my 420s not boosted yet but it iwll be soon. But just go over every single coupler, hose, eveerythng othe turbo, intercooler, piping, bov, boost controller, etc. and just make sure there are no holes, lose fittings or anything.

 

[pgarland]

so a boost leak can cause these problems how would a cheack for leaks...

There is a pretty good write up on it here: http://www.dsmtuners.com/forums/art...-boost-leak-test-how-boostpro-net-tester.html

I would recommend using a spray bottle with soapy water to help find small leaks too. Hope this helps.

 

[dsmking101]

ok i drove it around today for a lil or at least tryed it drove pretty good and strong like most of the time i took it up the block or so but the car just dies all of a sudden no stutter or sign of it going to shut off ill be driving on 3rd or 2nd gear and itll just shut off like it i turned the key and shut the ignition ....but this happen afther about 5 or 6 minutes of driving...any clues what it can be? i already searched for boost leaks couldent find any...

 

[psycho]

I say crank or cam sensor.

 

[dsmking101]

my down pipe o2 sensor ripped off so i dont have it on right know could this be why it keeps dieing on me since im driving with out my o2 it would make alot of sense if it was...