Bora V6 4motion super high fuel consumption

[arixooo]

Hi Everyone,
I've recently bought this car and had it serviced, new tires, oil, filters, A/C, ESP sensors, CV shaft!
Spent around 2K just fixing the car, I am happy with the way it drives but fuel consumption is extra ordinarily high

I was reading about the possible issues and found this on carsguide website :

"
they can also have trouble with engine electrics with airflow meters and oxygen sensors. The latter can send the fuel consumption rocketing if they fail, and may not send any signals to the driver that there’s a problem while driving.
"

No error comes up when scanning, do you still think that it could be the issue?

P.S Current Fuel consumption is more than 20L/100KM. (Driving very conservatively)

[beale187]

I get about 450kms per tank city driving.. what are you getting atm?

[arixooo]

I get about 450kms per tank city driving.. what are you getting atm?

Wow, That's good. I am getting 250KM per tank

[bloödstorm]

The coolant temp sensor often fails on mk4s (V6 and 1.8T alike), which can cause rich mixture and high fuel consumption. Worth checking out I think.

[beale187]

250kms/p tank Eww.. that's messed up.

You could try cleaning the MAF gently with a clean lint free rag and some electrical contact cleaner. Same goes for the O2 sensors Although I don't think they're expensive so perhaps replacement is in order.

Have you checked your plugs?

[arixooo]

good points
Thanks guys ,
I ordered an OBD scanner off Ebay
Gonna monitor the fuel efficiency and do a bit of research once I received it. I will share my findings

[beale187]

I bought this a while back and it works awesome and is 1/10 the price as the original.

VAG-COM VCDS 2018 - OBD2 Diagnostic Cable & Software (for VAG Cars: VW, AUDI, SEAT, SKODA)

[arixooo]

Too late mate, already bought this :

http://r.ebay.com/5nRNQG

I can return it if it didn't work properly, will order the one you sent

[arixooo]

I ended up ordering that one, waiting for it to be delivered

[arixooo]

I bought this a while back and it works awesome and is 1/10 the price as the original.

VAG-COM VCDS 2018 - OBD2 Diagnostic Cable & Software (for VAG Cars: VW, AUDI, SEAT, SKODA)

Hi mate,
I bought that device but have some connection issue and it says no interface, will sort that out with their support but just realized with VCDS can't program new keys.

Have you ever tried connecting to Vag Tacho software with that device?
are they compatible?

[beale187]

There is a certain process to gaining connection (which I always forget).. From memory, you need to

Disable your WiFi on your PC.
Car will need to be switched off
Connect the cable
Open VCDS
Turn the key I think to "ACC" (reds on) or Start the car
Then in VCDS you need to go to Options and run a test to ensure connection.

If you're doing an Auto-Scan don't forget to select your chassis (1J2 for Bora's) it won't auto-detect

Have you looked at this, I was under the impression you could match keys in VCDS?

Immobilizer III Key Matching (Cluster) - Ross-Tech Wiki

RE: VAG Tacho, haven't used it can't comment.

[arixooo]

There is a certain process to gaining connection (which I always forget).. From memory, you need to

Disable your WiFi on your PC.
Car will need to be switched off
Connect the cable
Open VCDS
Turn the key I think to "ACC" (reds on) or Start the car
Then in VCDS you need to go to Options and run a test to ensure connection.

If you're doing an Auto-Scan don't forget to select your chassis (1J2 for Bora's) it won't auto-detect

Have you looked at this, I was under the impression you could match keys in VCDS?

Immobilizer III Key Matching (Cluster) - Ross-Tech Wiki



RE: VAG Tacho, haven't used it can't comment.

Thanks mate, the problem is VCDS does not retrieve the immobilizer pin. VAG Tacho does which I am not sure if it needs its own connector or I can use the Ross-Tech USB connector