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idle problem please help

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malin819

10+ Year Contributor
53
0
May 29, 2012
ottawa, QC, Canada
mitusbishi 1997 GST

Car was running fine for 2 months no problem whatsover but today when I came back from the gym, I arrived at a redlight and the car rpm dropped. Normally it would idle at 1100 without any problem (HKS 264 Cams) but now the cars wants to stall big time. When the light turned green I drove and the car was running fine without any problem but when I cam to a stop the engine wanted to die...the idle drops at 200-300 rpm

I have no clue whats going on...no check engine light

Can you help me out if possible?

Car runs fine when driving but rpm drops and almost stalls when at idle
 
mitusbishi 1997 GST

Car was running fine for 2 months no problem whatsover but today when I came back from the gym, I arrived at a redlight and the car rpm dropped. Normally it would idle at 1100 without any problem (HKS 264 Cams) but now the cars wants to stall big time. When the light turned green I drove and the car was running fine without any problem but when I cam to a stop the engine wanted to die...the idle drops at 200-300 rpm

I have no clue whats going on...no check engine light

Can you help me out if possible?

Car runs fine when driving but rpm drops and almost stalls when at idle

any strage sounds, anyting out of the ordinary ?
sounds to me like you have a exhaust leak at the manifold
 
ok im charging the battery...but i check the throttle cable and its kind of loose! pedal feels weid to

how can I fix that

ok I just started it...strong gasoline smell! idles really low but doesnt stall and it sounds like pop corn. Sound like its missfiring but not CEL

ok well my bov vacuum line was disconnected...do I connect it anywhere. I have no clue but thats probly the main problem! Can I connect it on any vacuum port on the throttle body? I have an aftermarket intake manifold and throttle body
 
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okay cool battery charge will be nice.. you have a vacuum hose line that comes from manifold right and goes to your bov? throttle cable tighten up from the right near end if you can post a foto. ifi its disconnect from your bov it goes into your manifold thats basically near the coil ignitions.
 
ya the vacuum line is still connected to the bov but I have no clue where to connect the other end...aftermarket intake manifold

manifold is a Motoria" is a ssautochrome/xspower peice
 
I would try a boost leak test. I drove my car fine to pick up my gf one night and when I can to a stop off the freeway it just idled crappy then shut off. Turn out the hose from the intake manifold to the head was cracked.
 
yes I know what the problem is my bov vacuum disconnect from the intakes and im trying to find out where do plus it since its an aftermket intake manifold
 
ehh shit there isnt no lil end wer that hose can go.. it uslaly would be near the coil igintions take a foto of it for meill circle it on paint if i can see
 
My car is super sensitive to battery voltage. Might be a bad battery. Give it a good trickle charge overnight. If it doesn't die anymore for a little bit... that is your problem.
 
Problem resolved! Ma vacuum hose connect the bov to the intake manifold was done. I replace the hose and reconnected everything with tie wraps and now its all good! but I left my door open so the battery is now dead haha
 
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