Cayenne S, 2004, Engine dies after coil change

[ekstroemtj]

Hello Community,

maybe somebody here who can help me.

i am Thomas from Germany. My wifes Cayenne is going to drive me crazy.

Car was running perfect. just in case and cause i didnt know when spark plugs were changed last time i did this work last weekend.

changed all plugs and same time replaced all coils. easy DIY work.

No any further work i did.

i made a test drive. car was running perfect but engine control light came up.

i left car on the street and did not drive again because i was affraid. did some research what it could be and found out possible to continue to drive if engine doesnt sound strange.

wanted to drive the car to garage and........... started but strange behaviour, stottering and dead. started again and same behaviour.

i left it there.

next day i checked my work, take out all plags again and replaced.

testdrive arround the corner. no problem engine running like new but engine control light still on.

stopped on gas station to take fuel. again the same problem.

engine starts, runnig for some seconds and ........ dead.

any idea what it can be.

could i did something wrong with the spark plug or coil work?

any anyswer will be a great pleasure.

thank you, thomas

[Prhartley]

I would check to make sure that your intake tubes after the mass air flow sensors are properly connected. If they are loose that could cause the engine to stall due to the amount of unmetered air entering the engine. Past that I'd need to know the fault codes.