Yes, its an isolated case. But he's not entirely unlogic. Below is tha hailight of yesterdays incident:

My explanation to magician:
drive on vacuum between -0.4 to -0.6bar, which translate as 11-17 inches of mercury suction power, shift up within 2.5krpm. Purpose to achive better FC, if you notice lately 2 tank of petrol I managed to make it up to 12km/litre! Which is almost the best FC in town driving that matches I did on plain haiway cruising.

Magician f#ck me with his logic:
自动截气哇佬(assume he is saying DbW) works with auto adjust timing, AFR. By limiting amount of air intake to cheat AFR is clever enough. Shift within 2.5krpm will also help to reduce petrol usage as ignition timing didn't get lift up. However, if combine 2 techniques into daily driving my BLM, he believe this is the cause of asap hutan bakar. My ECU has been trained to work within 2.5krpm with less air intake, as I slammed on the gas pedal, excessive air being released to the vacumized IAFM, therefore the oxigen sensor(MAP sensor corrected by dares) got scared, qucikly instruct ECU we're having a disaster. ECU also scared large amount of air being sucked in would result in burning lean, immediately ECU instruct injectors to flood my combustian chamber. Since so much of air + fuel being pour in, sparkplugs were overwhelmed.

We found the injectors weren't really clogged up badly when we clean it up in the first place. Magician suspect its just plain bad information I fed to the ECU that confused the engine management as my normal driving style is makcik pegi pasar, all of a sudden drive like boss iXora, that result ECU poning, nie makcik pasar ke iXora?

I was advised to drive either makcik pasar forever & ever to save petrol; or drive like r3apers assuming father owns an oil rig, never cross each others line. And, if I time to time wanna go buttseck people, just drive like kenjilew. When nothing better to do, drive 40kmh; when kena cucuk, bring along a can of mosquito spray go RPM redline over take people & start spraying on their windscreen. Hybrid driving like kenjilew will not give good/bad FC, it will averaged everything just to keep the engine in good shape. I guess that also explain why kenjilew's FC so damn bad like r3apers as both of them sumtime tell us they drive wei sloe, suddenly heard others commenting they drag 1st gear like a CVT, also heard kenjilew did 194kmh. Tell me if my magician is wrong, but it all sound logic to me now.

As of FC, magician said just admit it. My average is 10km/l, regardless how I squeeze it can only get up to 12km/l. So, why bother? Drive until right foot wanna snap also no fun. Every car got its own characteristics. Slight 0.1mm differ in head gasket size will results huge difference compression in the combustion chamber. Unless I go overhaul my S4P, there will be NO otherway to expect much changes on my FC. When you gotta drive fast, just slam 9 it. When not needing the performance, just drive normally, don't purposely drive sloe sloe to get FC.

Before we left the exhaust shop, I shoot back magician why my Iswaga can drive like apek, when challenged I also can go up "diong" a stock Putra? He replied me with a super sarcastic smile, rolled his eyes and said to me, "ah hia, lu eh iswala uh gui niap senser? Uh gui niap komputer? Lu ai bang ige kabulator lok ki lu eh BLM boh? Wa ga lu zho, wa galantee lu eh BLM goh bak kilomiter bo bunteh lar" I guess that's more or less what he said, translate to Manglish as "Blarder, lu punya Iswala got how many senser? Got how many komputer? You wanto pu kabulator into your BLM anot? I do for jiu, galantee your BLM 500kilomiter(per tank) no problem lar".Tell me if I translate wrongly.