MOT EPIC FAIL HELP NEEDED URGENTLY PLEEEEAAAAAASSSSSSSSEEEEE

[m0jo]

well my run continues

Failed on

illegal plates front and rear: easy
Number plate light bulb: easy
Handbrake on maximum adjust: Is this a fail?? anyway they mentioned it
Wiper blades: easy
Washers: Presumable blocked but well dunno
Emmissions: failed now i had my precats out so don't know they're suggesting replacing the cat, but the cost quoted is £600 alone + fitting and VAT.

Any ideas, going back later on what should i ask about the emmissions is it likely to of failed cause of the pre cats? whats the failure level

Derby/Loughborough way willing to travel

[DannyN]

Removing the precats will not make the car fail the emissions test.
They are only tyhere for the Japanese test and are used on engine start up.

Was the car up to temperature when they tested it ?

[Ekona]

Removing the precats will not make the car fail the emissions test.
They are only tyhere for the Japanese test and are used on engine start up.

You mean the CARB regs in California

[m0jo]

the details.





by the way the washer jets work water pouring out all four holes not jetting but hitting the window 1/4 up should this be a fail? i cant see what to fix if waters coming out all four oulets (2 each side) and hitting the screen?

[DannyN]

Removing the precats will not make the car fail the emissions test.
They are only tyhere for the Japanese test and are used on engine start up.

You mean the CARB regs in California

Yeah thats the one, wierdo's

[Chris]

Considering it is the lambda that is too high, I'd fit an oxygen sensor first.

[Rowland]

I've got a spare pair of washer jets if you need them...

[m0jo]

Appreciate your help guys, sorted the rest of the niggles last night.

Handbrake was a nut + locking nut found a how to on the ROC
Washers, repositioned with a pin and they seem to be fine now.

Plates/bulbs/wipers all sourced from motor factors.

Cleaned the MAF again with carb cleaner and treated it to 97 ron fuel so i'll see if that makes any difference


I think your right about the lambda being suspect

MrT's price for a new lambda senser were £160+VAT
Second hand (breakers) £40 cash each
Anyone any other idea's?

[toxo]

How about a middle option?

http://www.lambdasensor.com/main/mr2.htm

[m0jo]

How about a middle option?

http://www.lambdasensor.com/main/mr2.htm

cheers mate for £40 more this is probably worth it.

i got two O2/lambda sensors on my version of the roadster the MR-S, whats the odds of both being faulty? reckon i should just get one replace each in turn? to fault find?

Surely if both were failing i would experience greater running problems?

[toxo]

You can test them with a multimeter. There's a howto in the MK2 BGB, Lambda sensors being a standard thing I would assume it'd be the same for the MK3.

[Chris]

The upstream (top) sensor controls fuel mixture, the lower makes sure it's ok. Replace the upper one first.

[m0jo]

The upstream (top) sensor controls fuel mixture, the lower makes sure it's ok. Replace the upper one first.

Cheers for your input guys didn;t realise on the left it said i had a rev1 turbo, just realised that feeds from the garage and changed it.

Got two cats on the roadster in the manifold

Spotted the multimeter check so gonna give that ago hopefully eliminate the issue.

Should be in a better position to update everyone tomorrow.

I'll keep y'all updated.