Recently I changed the timing belt and from that day I have a problem my s40 won't start when I drive for a while and stop for some time it won't start only cranks . in the morning it works just fine please help me

Yes it works but the idle is moving up and down .. Now my. Mechanic said that the exhaust valve is broken and need to repair

I just do every thing you said and still the same problem but thier is a new thing happens .. Their is like a backfire from the throttle with explosion sound that's make the filter box cover open checked the timing belt and the timing and every thing is ok

Thank you very much sir I just checked the valve that is in the end of the injector and the fuel pressure look very good . and cleaned the sparks they only 5 month used less than 15000 km and I just unplugged them and claean them test them and thier is a blue spark Tomorrow I will test the Compressi...

have a nice day i just cleaned my s 40 2002 idle control valve / camshaft sensor and then the car won't start it just keep cranking till the battery dies i checked the fuel pump the injectors the coils the spark plug the fuses and checked it on obd2 and no fault found please help me with this problem

Thank you sir I have just plugged the o2 sensor and connect the missing vacuum hose and every thing is ok .. Then I cleaned the throttle and idle control. Valve and maf sensor and the car won't start after the cleaning it just keep cranking without working .. I have checked all the connectors and ch...

A missing vacuum line could easily make the car run very poorly. I'd try confirming that it's actually missing and figure out where it's supposed to go as a first step. Unplugging the O2 sensors by the catalytic converter would also make the car run poorly. Thank you for your fast replay sir 1-Wher...

alschnertz wrote: ↑29 Aug 2018, 00:44 Clogged catalytic converter?

Sorry my dear I have just cleaned it last week but I have unplugged the sensor that came on it does it matter ?

difflock54 wrote: ↑28 Aug 2018, 18:40 Assuming it has an automatic transmission ?? Maybe it is stuck in winter mode.
The W button beside the gear shifter turns that mode on or off.
When on there is an up pointing arrow appears on the dash also.

Thank you for your replay
Sorry dude it have a manual transmission

Thank you for your replay I do all of that without the vaccum lines and software update today I noticed one of the vaccum lins is missing but I don't where it goes .. It is the one to the left of the throttle gate