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Hi, I am writing in regards to my friends 2003 Mazda SP20 2.0L The car initially had the variable intake butterflies fail and the issue corrected, after a month of driving the car exhibits unusual running and idling characteristics, for example, the car randomly stall when coming to a stop and would restart after sitting. After driving several weeks with occasional stalling, the car starts to misfire and swapping of coils, deemed the shared coil for 1 and 2 faulty, the coil was extremely hot and a visual inspection indicated coil failure, as a bulge is protruding from the head. Replaced the coil and the car ran ok for a while until the symptoms repeated itself and the new coil had failed on the same cylinder as the first set. I have not had time yet to check the car first hand unfortunately. Are there any common issues that exude similar symptoms? I plan on checking the inputs to the coil and the PCM which from what i have read is located under the passengers footwell. Wiring was checked apparently for crimped wires and shorts. I believe it could be coincidence the coil failure occurred several weeks after repairs carried out in the area of the intake. Unsure at this stage. Thankyou
Possible bled lifters, common in E39 M52 and M54 Hold your foot on the gas and crank for about 6 seconds, if a change in note or attempt to start is present, try again. If it starts it will smoke for a little while Otherwise check for spark by removing the plug, sticking it into the coil and earthing the threads on a metallic grounded component and check for spark while cranking. Hold you a screw driver on an injector and put your ear against the screw driver and listen for ticking while cranking, if it is clocking you can assume it firing the injectors, if not there is an issue with the DME. This is only a garden path towards a labyrinth of diagnosis paths for "no start" issues. Going any further requires proper mechanical experience. sorry
IMO three possibilities, in order of probability 1. Starter solenoid 2. Ignition switch 3. EWS issue Good luck
There should be a button in the centre console which you press and hold to temporarily disable it till next ignition cycle.
Possibly a fault in the Lightmodule or the rain/light sensor To be checked by your nearest dealer
Check the rear shocks, if it has large spherical black units attached to the shocks, they commonly fail internally and require replacing. You are able to replace it with a new NORMAL shock without the round unit, should be better but you need to buy a shock and spring. Also check the bushes Goodluck
I dare say the trans is on its way out, oil level and condition is to be checked and further diagnosis required
MANY!! consult BMW parts schematics
Were the right plugs fitted? the wires put back in the right place? anythings else removed such as earth straps or the coil plug? replace or charge the battery and check the things i have told you the noise could be a number of things and should be checked by a professional once the car is running.
Sounds like cold running values are disturbed possibly due to component failure. Codes are to be read and diagnosed