Could even be a bad batch of fuel, If its not recurring - obviously. If I load my car without octane or meth running (Short shifting into 3rd and banging it) you will detonate and immediately the engine malfunction light comes on and shes in limp. Without coming to a stop I restart and carry on driving like normal. Ok this might not apply seeing as you aren't tuned, but if you got a properly bad batch of fuel, 93 maybe, it could be plausible. even 95 is below spec for our cars. :thumbdo: But there are also a myriad of other possibilities, this is just the easiest to rule out.