Service Engine Light on after first track pass with Cam
07-09-2005, 03:50 AM
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Service Engine Light on after first track pass with Cam My S.E. light flashes when i hit 6K RPM going down the 1/4th, feels like it loses all top end. With Mods in sig was only running 13.3's @ 109-110. My traction was pitiful on stock rubber but was wondering what may have caused the light to flash on then off at 6k. Light stays off after letting off it and she drives fine under normal conditions.
I have 918 springs, was wondering if any of you think it may be valve float?
Or perhaps just running too lean up top? Hasnt been tuned. I dont have a scan tool at the moment.
Thanks
Scott
yes, its getting tuned very shortly, just a base line run.
I have 918 springs, was wondering if any of you think it may be valve float?
Or perhaps just running too lean up top? Hasnt been tuned. I dont have a scan tool at the moment.
Thanks
Scott
yes, its getting tuned very shortly, just a base line run.
07-09-2005, 08:36 AM
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gee, what a brilliant observation. ive had 3 different cams now, i know the difference between a tuned and untuned car, i think this is different. thanks for your help, its getting tuned this week, just wondering if anyone thinks its valve float. btw, Dubai is a nice place, i met my wife there.
07-09-2005, 09:58 AM
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Scoobie, I was saying that untuned you can go lean on top and seriously mess up things. That is why I bang my head when cam swap is done and the motor is pushed on without a tune.
What tune was in it?
What tune was in it?
07-09-2005, 10:38 AM
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is it exactly 6k then the light goes off or just when you get up high in the rpms? could be loosing a o2 sensor, my car did this when i went high in the rpms right after my H/C swap...
07-09-2005, 12:39 PM
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Honestly, with those mods that's about the right time for a real world track run. The manifold at 90mm might not be the best help on a stock cube, medium cam car. The LS6 would be about the same at the level the car is at right now. With my mods below on a shitty track (I had a 220/224-114 cam) I only got 13.1@110. Got exactly the same time all three runs. If there was more traction on the line I would have a 12 second slip but the trap speed tells the story on the mods and I feel that you are about right. I don't know about the SES light though. The dyno-tune will settle that.
07-09-2005, 01:07 PM
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A flashing SES light is a misfire somewhere Scoobs. May have a plug shitting the bed on ya. Double check all the plugs, coil pack connectors, and etc. PM me if you need anything!
John
John