Z4-forum.com

Oh dear, was out for a walk in the woods today with my good ladyfriend Laura, got back to the car a few hours later, keys in cranked over, sprung into life but sounded very very different!
Engine was pulsing as though I was on and off the throttle but my foot was nowhere near the pedal. Didn't dare slipping into gear and letting off the clutch for fear of something going pop.
Switched off and plugged in my basic OBD reader. A whole plethora of codes came up:

P1633P - throttle body. (Is that the DISA problem i've read about?)
P1675 - 'throttle valve actuator start test adaptation'
P3240 - thermostat on the way out?
P0171 - bank 1,2,3 running lean. 02 sensor?
P0174 - same as above but bank 4,5,6

The last 3 codes were present before today and it was my intention to get new stat, waterpump and o2 sensor swapped in asap.
But the throttle body codes thrown up today are major cause for concern.
Anyone had similar problems, experience?

Managed to get the ANWB guy out (Dutch AA/RAC) and he reset the engine and managed to get it started and running ok again. Managed to drive all the way home normally but it won't start and run properly again- same pulsing engine experience.

Will get it booked into my local indie but will first try to diagnose repair myself. would be interested if anyone can shed any light?

I would'nt give a tuppeny toss what was wrong with my car with Laura sitting in it.

She is one fine looking lady, you're batting way above your average there my friend....

john-e89 wrote:I would'nt give a tuppeny toss what was wrong with my car with Laura sitting in it.

She is one fine looking lady, you're batting way above your average there my friend....

Hahha, i'll pass that on john. She'll be chuffed to bits...

Chris_D wrote:

john-e89 wrote:I would'nt give a tuppeny toss what was wrong with my car with Laura sitting in it.

She is one fine looking lady, you're batting way above your average there my friend....

Hahha, i'll pass that on john. She'll be chuffed to bits...

Just pulling your leg mate.

Nice to see such a lovely smile.

john-e89 wrote:

Chris_D wrote:

john-e89 wrote:I would'nt give a tuppeny toss what was wrong with my car with Laura sitting in it.

She is one fine looking lady, you're batting way above your average there my friend....

Hahha, i'll pass that on john. She'll be chuffed to bits...

Just pulling your leg mate.

Nice to see such a lovely smile.

It's aiight mate.
We're actually best friends for 15 years now. But you're right, I would be batting way above my average!

Multiple error codes can sometimes point to an old battery thats on its last legs. (btw - 'Betty' you've got to be kidding?)

Cant believe you drove all the way to Daves on your own viewtopic.php?f=3&t=90194#

Marlon wrote:Multiple error codes can sometimes point to an old battery thats on its last legs. (btw - 'Betty' you've got to be kidding?)

After reading various threads Ive got a feeling I'll be looking for a needle in a haystack on this one!
Managed to get home ok so will have a proper butcher's tomorrow.
And whats wrong with 'Betty'? It's as good a name as any. Was either that, or 'Brunhilde'

cherrym wrote:Cant believe you drove all the way to Daves on your own viewtopic.php?f=3&t=90194#

Alright cherry mate. Well, she could have come with but she's KLM cabin crew and was away on a flight that week sadly.

Had to replace my battery recently so I hope thats an easy fix for you.

Try and keep the battey leads coupled through some jump leads if you change it as purely disconnecting can sometimes put the Z into transport mode and a trip to a dealer.

Sage advice Cherry.
However, Was advised that the battery was almost new. It's got Honda branding (?) see pic.
And the first 3 codes were active on the car when I bought it - got it priced down accordingly.
The 3 codes relating to throttle body came on today and could have been exascerbated by my bodging back in of the secondary hose coming off the air inlet hose from the airbox. Will be checking all hoses as I did notice a feint whistling/chirruping sound previously. pic...
But will also check battery condition. thx for the tip re jumpleads etc.

Have you checked the battery is the correct capacity ? That looks small to me

mr wilks wrote:Have you checked the battery is the correct capacity ? That looks small to me

Will check it tomorrow wilksy. I did think to myself 'that's a bit titchy' when i saw it when i went looking for the hifi amp, located behind it in the battery well.
What should correct capacity be?

john-e89 wrote:I would'nt give a tuppeny toss what was wrong with my car with Laura sitting in it.

She is one fine looking lady, you're batting way above your average there my friend....

+1