Kingkolbasa
New member
On a recent trip to Blue River, my '06 M7 seemed to be running quite lean and only topping out at 7600 RPM? Pulled the plugs and was quite concerned with the colour as well. The sled has no mods and is bone stock. Tried to adjust the secondary spring tension by rotating the adjuster out. this did not help my cause. I was also thinking that perhaps my ECM may be on the fritz as well due to the mapping being completely off. Had the machine in the same area last year and had no problem pulling 8000-8100 RPM with no problem. I have been running regular 87 octane since I got the sled and have not done anything else in terms of tweaking or performance mods. Any guidance or suggestions would be completely appreciated!
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