'09 1500 LTZ Z71 Air Intake PROBLEMS!
#1
'09 1500 LTZ Z71 Air Intake PROBLEMS!
I just installed a K&N cold air intake on my truck and the service engine light keeps coming on. I can reset it by disconnecting the battery cable but it comes back on after 20 miles. I've also had the 4 wheel drive place reset the sensor and it came back on the next day. K&N said that the sensor on that year model is overly sensitive and offered me a full refund. Should i keep driving and hope the computer relearns itself or replace it with another brand. I have gained horse power and picked mpg's with this unit but i just don't know about that service engine light. Any ideas?
#4
Get the refund, then. It's not going to happen, "the computer relearns itself," since there's nothing for it to learn. It's programmed to raise the fuel trim to accommodate the unmetered air only up to a certain point.
#5
Super Moderator
Professional Mechanic
Professional Mechanic
I would assume the filter is oiled. Most likely oil got on to the Maf sensor. Try to clean it and wipe some oil out of the filter. You may need to swap the filter for one that is not oiled.
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