hi guys .. after installing the IC co2 spray system and fixing a leak in the vacum .. the car was crazy fast but ...

after 1 week driving normally ..

one day i start the car and the idle was playing alot up and down ,, i wait few seconds it stopped than i put the gearbox in ( D ) the idle reached to 1100 rpm and stoped in the sametime after drive the car in this Conditions also the shiftting was not normal ,, a littel delay between normal shiftting ... what made me feel that the car is crazy .. Suddenly after driveing the car few mins everything back normal ... normal idle postion ,, normal shift !!!! turn the car engine off , than turn it on .. the same problem happend ,, sometimes even when i press the gas ,, idle not moving ,, than the engine shut down !!!!!!

can anybody please tell me what is wrong ??

i think its the throttelbody correct me if am wrong
thanks
yousef

 

 

I really wish I could help you bro. The only advice I can give you is to talk to Dan at Vivid.
He's your tuner so he should be able to help you out.
All those fault codes you're picking up look, frankly, scary to me.

Good luck and keep us posted.

 

looks like both gear and MAF sensor to me ..
any trouble codes ??

 

When cold out (not now for you or me), the secondary air pump on cold start hunts as the car warms up for about 30sec. Check the fitting/hose that is about 1" diameter on the left side of the YPipe. Also check for a boost leak again. Check all the clamps on the intercoolers, intercooler fittings, intake, etc. Pretty much check everything you removed. 99% the MAFs are not bad.

 

dan ,, do you think its throttle body ??

 

Nope not at all. Check the parts you took off to install the IC kit. If the TB never had a problem before, it will not now.

 

ok dan i will Check the car .. its something maybe in the Y pipe system or the vacum hoses behind the throttle body i think ... hope its easy to fix

 

If that was the case you would have major boost leaks. Sometimes the vacuum causes the idle to hunt if a clamp is not all the way tight.

I bet you it is the secondary air pump return that goes into the driver side intake when you took that out to put the NX on the intercooler.

 

mmm dan please can you explain more ,, what is the secondary air pump ??

 

See attached. Check all these clamps and hoses for a tight seal. Spray water on them with a water bottle while idling on start up to see if it bubbles. If it bubbles, you have a leak.

 

thanks dan i will go to the work shop and i will let you know
thanks

 

after checkin the car we found alot of leaks

here some pics

this is the boost controller hose ,, which connected with the WG



here is leak in the intercooler hose which connected with the turbo ...







and a big crack in the headers huge in fact , i forget to get a pic but i will


i will update you asap

yousef

 

WOW! Sorry to hear that Y.
I hope you can get it sorted out quickly and inexpensively.

 

hope soo .. am waiting dan to replay if this could be reason for the problems

kreem i will race a 700 whp cammaro SS tomorrow come and join us ,, i will glad to meat you