My 1.8 isn't running right NEED HELP AND IDEAS AS MY WIFE NEEDS THE CAR FOR WORK

[richw911]

Right took the golf to work today and borrowed a ignition amp of a friend 2 try. Was told it was located under the air filter box but i couldn't find it mine is the AUM engine.

While the air filter was out i tried the car and it was running fine so i put it all back together but problem came back. So i disconnected the plug to the sensor on the intake pipe to the air box the MAF sensor i think its called and its running like a dream so i am guessing that its this sensor i need? Or could it still be something else? Cheers mark

AUM doest have an ignition amp 

Yeah sounds like the MAF part numbers here http://www.golfgtiforum.co.uk/index.php?topic=94783.0

Get Bosch or a genuine one 

[cullygti]

could be a faulty maf if you unplugged it and it ran fine then yhats whats wrong 

[cossiemark]

So i tried another MAF sensor 2day and no difference it still ran like a sack of poo. The MAF came off a good running car so what else could it be any ideas?

[richw911]

So i tried another MAF sensor 2day and no difference it still ran like a sack of poo. The MAF came off a good running car so what else could it be any ideas?

Was the maf from the a car with same engine code?

[cossiemark]

So i tried another MAF sensor 2day and no difference it still ran like a sack of poo. The MAF came off a good running car so what else could it be any ideas?

Was the maf from the a car with same engine code?

yes came off an aum engine

[richw911]

Did you clear the fault codes after fitting it?

[cossiemark]

Did you clear the fault codes after fitting it?

didn't realise i needed to thought fitting a new one would cure it . I'm not used to these modern cars i'm used to old fords like my cossie and turbo much easier to work on lol

[richw911]

Did you clear the fault codes after fitting it?

didn't realise i needed to thought fitting a new one would cure it . I'm not used to these modern cars i'm used to old fords like my cossie and turbo much easier to work on lol

Is the engine management light still on? Im not sure clearing the codes will make any differance tbh.

[xxChrisxx]

First things to do are:

Clean your throttle body.
Clean up any contacts on earth wires.
Check your spark plugs. (note the condition)
Give it a general service.

They are free/cheap, and give a good indication of the running of the engine.


Disconnecting the MAF and having it run better, means that something is screwing with the fuelling map on the ecu. It sounds as though it's running rich. Unplugging the MAF switches to a safe default fuelling map. Which would cure this.

My guess would be a boost leak, or lambda sensor.

[cossiemark]

Did you clear the fault codes after fitting it?

didn't realise i needed to thought fitting a new one would cure it . I'm not used to these modern cars i'm used to old fords like my cossie and turbo much easier to work on lol

Is the engine management light still on? Im not sure clearing the codes will make any differance tbh.

yes its still on mate