Hi All
I bought a MK1 with a performance and idling issue. Its a 2009 1.6i with 94 000km
1st the fuel pressure regulator pushed 6 bar fuel to injectors which we have now repaired
Then the idling was still bad by closer investigation we noticed that the coil and distributor needed replacement. We have done this with OEM parts
Then the diagnostics showed an lambda error which we also replaced
So after all this work the car is still not performing it has a rough start almost a misfire for 3 sec or so then it clears. When you drive it its still doesn't really accelerate like it should with a lag here and there under acceleration.
I really want to keep the car authentic thus the reason for replacing the parts but we feel a bit clueless to what is the problem on the vehicle.
Can anyone suggest of similar issues experienced and the fix on the MPI system?
MK1 timing issues
- vandyh
- Cadet
- Posts: 93
- Registered for: 10 years 5 months
- Car Make: VW
- Car Model: Velociti
- Location: Boksburg
Re: MK1 timing issues
The late 2008 models came with MPI ECU and not the MP9 as in the previous models.
Those ECUs manufactured by Shurlock give alot of lambda issues that can't be fixed.
I had similar issues until we replaced the ECU with the older MP9.
Those ECUs manufactured by Shurlock give alot of lambda issues that can't be fixed.
I had similar issues until we replaced the ECU with the older MP9.
Current ride
2007 - Jetta VI 2.0TDI
2007 - Velociti - 2.0 (91wkW, 174nm) @ 8V Performance
2014 - Kia Rio TEC
Previous rides
2008 - Polo 1.9 TDi 14i
2008 - Citi 14i
1996 - Citi Chico
2003 - Ford Fiesta
1986 - Golf MK2
2007 - Jetta VI 2.0TDI
2007 - Velociti - 2.0 (91wkW, 174nm) @ 8V Performance
2014 - Kia Rio TEC
Previous rides
2008 - Polo 1.9 TDi 14i
2008 - Citi 14i
1996 - Citi Chico
2003 - Ford Fiesta
1986 - Golf MK2
-
- Lieutenant
- Posts: 1626
- Registered for: 7 years 2 months
- Car Make: VW
- Car Model: Polo 9n 1.9 TDI Sportline
- Location: Durban
Re: MK1 timing issues
Yeah lambda dtcs that keep occurring are signs of a faulty ecu unfortunately..
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When a car tailgates me, i slow down - then floor it and give them a cloud of diesel smoke to choke on
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- Enlisted
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- Registered for: 6 years 1 month
Re: MK1 timing issues
Thanks for the info,
So can I then only replace the ECU with the MP9 ECU will the system still work? Even if I keep the MPI system in!
So can I then only replace the ECU with the MP9 ECU will the system still work? Even if I keep the MPI system in!
- vandyh
- Cadet
- Posts: 93
- Registered for: 10 years 5 months
- Car Make: VW
- Car Model: Velociti
- Location: Boksburg
Re: MK1 timing issues
No, MP9 does have a different plug and some wiring differences.
You will need a MP9 short loom, cut the MPI plug off and re-solder the new wires.
You can find wiring diagrams of all over the net for the MP9.
Most of the colour coding is the same.
You keep all existing sensors ect.
You will need a MP9 short loom, cut the MPI plug off and re-solder the new wires.
You can find wiring diagrams of all over the net for the MP9.
Most of the colour coding is the same.
You keep all existing sensors ect.
Current ride
2007 - Jetta VI 2.0TDI
2007 - Velociti - 2.0 (91wkW, 174nm) @ 8V Performance
2014 - Kia Rio TEC
Previous rides
2008 - Polo 1.9 TDi 14i
2008 - Citi 14i
1996 - Citi Chico
2003 - Ford Fiesta
1986 - Golf MK2
2007 - Jetta VI 2.0TDI
2007 - Velociti - 2.0 (91wkW, 174nm) @ 8V Performance
2014 - Kia Rio TEC
Previous rides
2008 - Polo 1.9 TDi 14i
2008 - Citi 14i
1996 - Citi Chico
2003 - Ford Fiesta
1986 - Golf MK2
-
- Enlisted
- Posts: 6
- Registered for: 6 years 1 month
Re: MK1 timing issues
Thanks for the reply
I can get a ECU of a Velocity 1.6i and a wiring loom. So All I do is replace the ECU and the system should be back to normal then?
Do you still leave the lambda sensor in?
Thanks
I can get a ECU of a Velocity 1.6i and a wiring loom. So All I do is replace the ECU and the system should be back to normal then?
Do you still leave the lambda sensor in?
Thanks
-
- Lieutenant
- Posts: 1626
- Registered for: 7 years 2 months
- Car Make: VW
- Car Model: Polo 9n 1.9 TDI Sportline
- Location: Durban
Re: MK1 timing issues
No the lambda gets disconnected
Sent from my SM-J500F using Tapatalk
Sent from my SM-J500F using Tapatalk
When a car tailgates me, i slow down - then floor it and give them a cloud of diesel smoke to choke on