View Full Version : Service engine light under boost
adidasdudegst
11-08-2009, 03:47 PM
So recently my GS-T has started to throw the service engine light every now and again when going into boost, or when there is added load on the motor. It comes on, then disappears when i let off the throttle, sometimes coming back on when i go to push the pedal again, sometimes not. If i go to give it more throttle while the light is on, it starts to bog/lose power. I have not done a boost leak test yet, but was curious to see if anyone thought the turbo could be going... I have 3" exhaust, intake, fmic w/ all hard piping, greddy rs bov, dsmlink (untuned). any ideas on what could be wrong?
Fran05
11-08-2009, 06:47 PM
It means you are getting some detonation, or knock. If you see it, immediately let off the throttle. By default, DSMLink is set to show CEL when knock is at or above 5*.
Get your car tuned somewhere.
Kracka
11-08-2009, 06:55 PM
dsmlink (untuned)
You answered your own question.
spinz4
11-08-2009, 07:21 PM
Yup that's the knock CEL.
adidasdudegst
11-08-2009, 09:29 PM
alright, I kinda had that in mind, but was thinking more the turbo. yea, i will just be careful for the next few weeks i drive the car. I will probably wait till after winter to get it tuned, as I'm gonna pull the motor and get it freshened up (timing belt, seals, gaskets, valves and hopefully some performance items), as well as do lifters, injectors, evo III 16g, manifold, clutch and flywheel. I should be safe as long as i'm careful right?
Kracka
11-08-2009, 09:33 PM
Stay out of boost and hope your fuel trims are able to take care of your cruise AFR's.
turbotalon1g
11-08-2009, 09:38 PM
I was gonna say to pull some timing in the mean time as well. I also have a tuning laptop if you need one/
95talonracer
11-09-2009, 04:57 AM
Why oh why do people beat on their cars with mods and no tune? It isn't worth it.
jhaan_dude
11-09-2009, 11:37 AM
because its the nature of man! we get all itchy cause we just put mods on our car and wanna try them out right away. wrong or right, its in our dna!
adidasdudegst
11-09-2009, 12:18 PM
turbotalon1g, thanks man, i got a laptop, i just dont really want to change any settings, since i wouldnt really know what i would be doing.
I haven't really beat on the car, i know i have to get it tuned before raging up and down the road haha i learned that when my GTP threw a rod bearing before i could get the tune finished and i took off from only one stoplight. there goes $6k down the shitter
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