What have you done to your mk4 (golf/bora) today?

[gavs]

Fixed my apparent dodgy alternator by replacing the battery, I'll take a $180 fix over a $300+ fix and the loss of some knuckle skin!

And replaced wiper blades, sooo much nicer when driving in the rain now!

[Manaz]

Be aware that a dead battery is often a result of an alternator failing to charge it properly, and a new battery will mask the issue for a while...

Easiest way to tell if your alternator is doing the job or not is to use a multimeter across the battery terminals when the car's running. If you're getting less than about 13.8v, your alternator's not doing the job it should be...

[trickysimon]

Just turned 20 and got my full license. Its turbo time!

[dylan8]

Just turned 20 and got my full license. Its turbo time!

Congrats! and yes for sticking a turbo on the 4mo!!

[trickysimon]

Haha thanks man.

[Lonewolf1983]

ordered another ECU and flash tune from C2 UK.
Will see how the software goes, but if all good it paves the way for a possible turbo kit in the future

Interested to see how the tune fairs vs the superchips, as I'll dyno back to back after the cams go in.

[McDub]

And replaced wiper blades, sooo much nicer when driving in the rain now!

Ahh ive been meaning to do this for a while. I presume you didn't get a wholenew aero blade and instead dismantled it and put in a refill? What refills do you use?

[BI65ND]

Replaced a hose and wow what a difference it made! No more overboosting issue now, smooth as. Guess the hose was leaking. Boost went down a little bit, but still a bit higher than it should be, now runs to around 13/14 and spikes to 15, instead of hitting 16 all the time and spiking to 17. Gonna take it up the coast fairly soon hopefully and get it checked and then flash tuned so that I know its running right. But very happy with how its running now

[Back Door Shenanigans.]

Just got her back from joe's today. Gotta pickup my wallet from the hospital tommorow allthought ill probably be ending up there soon.

Shes been throwing 11 codes but they were reset and only 4 codes remain.

17524 - Oxygen (Lambda) Snesor Heating; B1 S1: Open circuit
P1116 - 35-00 - -
Readiness: 0110 1101
Apparently its buggered. Connection been looked at and ok, been sprayed with contact cleaner. Quote is $500

00281 - Vechicle speed sensor (G68 ) (37-00 - Faulty)
Also possibly buggered. Speedo works fine so does esc but possible cause of cruise control problems. Quote $250

01274 - Air flow flap positioning motor (V71) (37-00 - Faulty)
Not sure on this one as it seems to be working fine.

01318 - Control Module for injection pump (j399) (49-00 - No communications)
Not sure how this ones buggered if my car runs.

Some questions tho.
Whats the typical redline of a bora 4mo? Mines changed itself to 5.5k when i believe it was 6.5k before. Joe said it was fine but it hasn't fixed itself for me.

Also managed to have a bent collar for one of the shifter cables which now needs replacing.

Sigh heh.

[Peter Jones]

I replaced the two rear oxygen sensors for less than that.

Here's the part numbers and prices (US$) from GAP.

Part number: 022906262R, also known as 079906262F
Oxygen sensor, original Bosch. Front, left side, before catalytic converter. Has full wire harness and electrical connector. $136.95

Part number: 022906262BB
Oxygen sensor, original Bosch. Front, right side, before catalytic converter. Has full wire harness and electrical connector. $121.05

Part number: 022906262L
Oxygen sensor, original Bosch. Rear, left side, after catalytic converter. Has full wire harness and electrical connector. $119.63

Part number: 022906262K
Oxygen sensor, original Bosch. Rear, right side, after catalytic converter. Has full wire harness and electrical connector. $114.89

[Lonewolf1983]

yeah definitely get the part numbers and order from overseas, much cheaper!
"no communications" could be a problem with the wiring/sensor rather than the unit itself

redline is 6.5k, were you revving when stationary or cold?

[McDub]

ouch the bora has 4 o2 sensors?!?! only one in the gti!

[Lonewolf1983]

yeah pre and post cat, wideband controlled ECU

[Back Door Shenanigans.]

Yeah i was aswell but i'm not sure if its the front or the rear ones. Where are they actually located ill have a look at the wiring.

The red line has changed but this was tested whilst warm on the road in gear.

[Peter Jones]

B1 S1 is Bank 1 Sensor 1

That's on the first bank of 3 cylinders nearest the pulleys and prior to the cat.

4Mo Boras have the same exhaust layout as the R32, two cats and 4 sensors.