I hope somebody here can help me out.
I have a suzuki liana 1,6 2003. 144000km Oil filter ,engine oil, airfilter, all changed at 140000km. Suddenly while driving it drops in speed and no acceleration possible while pressing gas pedal. What I have looked at so far:
• no miss fire
• changed spark plug
• no fault codes about catalytic converter
• o2 sensor works fine. Sinuside curve at idel between 0-0.9v. Also tested with multimeter
• o2 sensor circuit, checked with multimeter and gets volt around battery viltage
• Maf sensor cleaned
First I though it was the catalytic converter so i pulled over somewhere and started to gas in idle. This after i changed the spark plugs. I press the pedal to 2500 rpm untill i saw smoke comming out of the fourse sides of the engine. It is not the pre catalytic converter. it is the engine itself. No fault code(verified and unverified) are recorded. I decied to clean throttle body but I dont think it is any wrong with it.
When I turn on the car and take out the coils one at the time( not fully out) and put them back, turn of the car and turned it on again. It works fine.
I think it is a electrical issue. I only replaced the car stereo since I bought it and inserted a phone charger in cigarette hole. Anyone can give me a hint how to fix it.
There are no codes nothing that can help me out. I used charb cleaner to see if there are any vacuum leaks and there arent any as far as I could see. I dont know what to do . please help me