2004 CITI GOLF NO SPARK?? PLEASE ASSIST

[Wayneo5212]

i recently lost my keys so i did the following :

replced ECU (decoded)

replaced ignition

the car did start with no issues , then 2 weeks later the car refused to start (no spark)

i did the following :

- new module
- checked all fuses
- made a new key with transponder
- changed all plug wires

still no luck , what should i do?????????

[JuanVWFanat]

Hi Wayne.

Oky , i had same issue with my golf.

Here is a few tests to see where the prob is.

1 - Test the Coil.
Take the coil wire out from the dizzy and check for spark there.
If you don't have spark there it might either be the coil or you are not getting a signal from your box.
To check signal you must check on your dizzy you have a plug with 3 wires on it. The extreme left wire should be a V- , the centre must be a 5V+ signal wire and extreme right will be a V+.
To test this switch ignition on and check left and right wire , after that crank motor and check centre wire for pulses. If this is not correct you might either have a faulty crank sensor or a positive might be lost somewhere.

If you have spark from the dizzy then your rotor inside the dizzy might be faulty.

Check these and let me know if you found the prob.

[Wayneo5212]

HI Juan

thanks for you reply!!!

but question :

"To test this switch ignition on and check left and right wire , after that crank motor and check centre wire for pulses"

im no mech lol but how do i know that there is a "pulse" and there is a spark from the dizzy ?

i put a new coil and tested with a friends still no spark.....im thinkin the ecu might b faulty

[UDC]

Try your ecu in your friends car, its decoded already so will work in any mp9 vehicle.
Your car doesn't have a crank sensor, it has a hall sensor in the dizzy but to test signal would be same method mentioned already.

[Wayneo5212]

ok let me try testing the ecu first....will update tomorro

Thanks guys!

[Miela]

i recently lost my keys so i did the following :

replced ECU (decoded)

replaced ignition

the car did start with no issues , then 2 weeks later the car refused to start (no spark)

i did the following :

- new module
- checked all fuses
- made a new key with transponder
- changed all plug wires

still no luck , what should i do?????????

Edit: My bad, i see you replaced the coil already

[Wayneo5212]

just a question on the coil

the one i bought has a blue wite sticking out......what is this wire for?

must the coil also be grounded for it to work ?

[JuanVWFanat]

Hi Wayne

Might be , test your ECU in another vehicle and check its the easier way then checking for pulses.
I usually use a test light to check pulses.

If you don't come right pm me and i will try help over the phone.

[Wayneo5212]

ok thanks bro

[PoloRox]

Hey guys pls help 2006 citiVelocity 1.6 doesnt start only turns in the morning it will only start by pushing it and it will run perfectly throuhout the day, only during the morning that it doesnt start. pls help

[Sheea]

I have the same problem can shurlock cause? I made all tests of sparks please help.

[panic-mechanic]

So you made the tests of spark. Was there any?