Having trouble with power loss which has only just started, so nothing has been touched or services since this has started, I’ve got the yd25 d22 and the car runs perfect in 2wd, but when it goes into 4 low it tends to lose power at random there is no pattern to it, it won’t go over 2000rpm, thought it might be the maf sensor, cleaned it and it done it again, so replaced the maf sensor and it still does it, turn the car off and start it up again and it in fine for a while, any advice what to check would be good, the engine light does not come on.