New Polo GTI Cold Start

[Kai]

I get the weird click!
I get the weird idle!

[MINTpolo]

From VWvortex 1.8T faq:

"What is VCT?
VCT or Variable Cam Timing. Synonymous with Variable Valve Timing
The AWW, AWP, and AWV engine codes have VVT, while the AWD and APH do not.
The VCT in later 1.8T's is simply for emissions purposes. It has only two states - normal and massive overlap. The overlap is used to draw exhaust gasses back into the cylinders at startup."

[Ben_GTI]

OMG I was right!!!

[mattty]

Thought I will provide an update on the issue with my exhaust warning light. Took it to service yesterday and they were unable to pin point what was causing the light to come on with the error of fuel too lean.

The car had no other errors other than this particular error which came on for the second time.

Service staff asked about the fuel that I filled and I explained that its on shell 98 (full refill) that was purchased couple of days ago. Basically they cleared the code, test drove the car and were unable to see the error coming up during that time.

Well... 24 hours after picking up the car, the light appear again after 100kms. So it looks like its back to the service centre again. I note on both occasions after they clear the code, the car felt realllllly sluggish for the first 20kms or so after leaving the dealership. As if the boost was lowered... and then it returns to normal. (maybe remapping somehting?)

Knowing the I have put in the proper fuel, either the oxygen sensor is faulty... or something else is causing wrong mixture of air/fuel (MAF?).. which means my car has been running lean or too rich in its first 750kms (assumption made here is faulty sensor causes rich mixture as a way to compensate the lean fuel reading).

Any ideas?

[Ben_GTI]

Speak of cold starts; How warm should the engine be before you accelerate to 180km/h or nail it onto the freeway?

I usually let it idle for 5 mins before moving off and then travel very calmly below 40km/h for a while before I start looking above 1500rpm on the tacho.

What are peoples opinions?

[h100vw]

I wait until the water temp needle has started to move on my Audi, then it's open season on revs!!
If you guys have oil temp on the MFA, I reckon once that hits 50 degrees, off you go.
Gavin

[Wand Weaver]

Speak of cold starts; How warm should the engine be before you accelerate to 180km/h or nail it onto the freeway?

I usually let it idle for 5 mins before moving off and then travel very calmly below 40km/h for a while before I start looking above 1500rpm on the tacho.

What are peoples opinions?

I personally don't idle my car in the driveway or stationary at all. I've always had the mentality that (especially in an enclosed environment), it's a good way to end up with heat soak problems with your engine.

What I do is drive lightly (generally shifting before, or just as I hit boost at 1900RPM), and only opening it up (I don't really drive that hard regardless) any further once the temperature gauge is sitting at its final position (approx 90 degrees). I've seen plenty of people (including a neighbour with an Audi A4) open it up as soon as they back out of the driveway - I don't do that. I'll accelerate briskly, but I won't rev the engine hard until it's up to temperature.

While I do this with all cars, I suspect it might be more important to treat turbo cars (including turbo diesels) well for the sake of mechanical longevity.

[shaneth]

What I do is drive lightly (generally shifting before, or just as I hit boost at 1900RPM), and only opening it up (I don't really drive that hard regardless) any further once the temperature gauge is sitting at its final position (approx 90 degrees). I've seen plenty of people (including a neighbour with an Audi A4) open it up as soon as they back out of the driveway - I don't do that. I'll accelerate briskly, but I won't rev the engine hard until it's up to temperature.

I wait until the water temp needle has started to move on my Audi, then it's open season on revs!!

Yep im with these two and have been in all my cars, Once the needle hits the normal operating temp then its open season.

[Ben_GTI]

cool thanks fellas.