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Just stumbled upon another issue out of nowhere. While driving or just idling there is a very brief power loss in the engine, as if someone turned it off and on in a split of a second. Electrical power is uninterrupted but I can see the RPM drop instantaneously about 500rpm and then just jump back up with a "jerk". I was sitting in the parking lot idling and the same thing happened without touching anything, it also happens when I downshift and just cruise to a stop but without the "jerking". I have checked all the connectors (MAF, TPS, IACV, all plugs and injectors, Temp sensor) and nothing is loose. What I did notice thought which is weird is that when I turn the key on to ACC without starting the engine the check engine light goes off and on randomly with a weird click (like a relay), all other lights and accessories stay on.
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