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Model specific boards => Golf mk3 => Topic started by: gary1371 on 20 November 2008, 09:04

Title: 16v Cold Starting Probs
Post by: gary1371 on 20 November 2008, 09:04

Hiya all, when starting car in the morning it fires then dies, after several starting tries it chugs, stinks of fuel, then eventually clears itself and is good for rest of day, any suggestions?. so far it has had, new ecu and fuel pump relays, fuel filter, ecu temp sensor, inlet temp sensor, lamda probe, cleaned throttle body and isv. Any suggestions would be greatly appreciated, Gary.

Title: Re: 16v Cold Starting Probs
Post by: ShoCk on 20 November 2008, 13:13

Crank Sensor ...

I changed all the stuff you did, but in the end it was the crank sensor on its way out ...

CHECK THE WIRE FOR THE CRANK SENSOR FIRST, CLEAN IT THOROUGHLY, AND USE A TORCH AND INSPECT IT FOR ANY CRACKS ETC ... even then! i'd change it.

Title: Re: 16v Cold Starting Probs
Post by: tshirt2k on 21 November 2008, 20:01

Might wanna check the coil. Had this on mine for months. You need a multi meter to chheck the output resistance. My faulty one had a resistance reading of 2500 ohms. It should be closer to 4000 ohms. Also indicated by a yellow orange spark. it should be blue.

Title: Re: 16v Cold Starting Probs
Post by: beccasmk3gti on 22 November 2008, 09:39

also try ur maf sensor could be faulty and engine not mixing air and fuel properly ie not enough air and to much fuel when cold.

Title: Re: 16v Cold Starting Probs
Post by: gary1371 on 22 November 2008, 16:27

Cheers guys, il check em all again, ta.

Title: Re: 16v Cold Starting Probs
Post by: beccasmk3gti on 22 November 2008, 16:29

maf dead easy to find out if it brocken if you remove the plug and it still plays up its not ur maf

Title: Re: 16v Cold Starting Probs
Post by: Paul86S2 on 22 November 2008, 16:45

Quote from: beccasmk3gti on 22 November 2008, 16:29

maf dead easy to find out if it brocken if you remove the plug and it still plays up its not ur maf

No maf sensor on a 16v

Paul

Title: Re: 16v Cold Starting Probs
Post by: beccasmk3gti on 22 November 2008, 16:48

whats it go instead of a maf then?

Title: Re: 16v Cold Starting Probs
Post by: Paul86S2 on 22 November 2008, 17:09

Map sensor

see http://en.wikipedia.org/wiki/MAP_sensor

This will explain how it works much better than I can.

Paul