Hey guys, Ive been searching for a little over a week in regards to what my problem can be. The car will be going to a shop on Friday, but im trying to avoid the 85$/HR. I am running a JDM B16A (2Nd generation OBD1). I have a P06 Chipped to P28 with Vtec. CEL is on, always has been since swap, when jumped reading solid CEL... -.-. Anyways, to the problem. Last week I filled the oil, put in probobly 1 Litere too much, and also took off the Vtec Solenoid to check the screen and gasket, everything seemed fine, bolted the 3 10m bolts back in. Drained some oil so it was at the right level and ever since I have had the following problem: When shifting, car tends to backfire when switching gears(1 in 10 switches). Here is the main problem: When the car is in any gear, (1-5) and if I floor the pedal, the RPM's will go up(1st gear when floored will go near 4K and then drop to 2K and continue rising and gaining speed as usuaul), whereas if in 4th gear if i floor it it will go to 6K RPM, with gaining almost no speed at all, and then after 5-8 seconds or so it will adjust down to the appropiate 3K RPM(etc.) and begin gaining speed as it should. To recap the problem Shorter: Floor Gas, it gains RPM, but Little speed, then it will go to the correct rpm and gains peed after 5-8seconds or so. Any help or tips, or anything would be greatly appreciated. Thanks guys!