Hallo all,

 

thanks to Eric / Danny and the Conzult at Billing I now know I need to replace the knock sensor and the two O2 sensors. B*gger. :cry:

 

I take it the O2 sensors are the same thing as wot the manual calls Exhaust gas sensor (EF & EC-16).

 

I have found the immensely helpful basic procedure for plenum removal here http://www.300zx.co.uk/forums/showthread.php?t=30838 thanks to the immensely helpful andyduff.

 

1) I did the pcv valves and hoses last year - do you think I'll get away without redoing them now?

 

2) If so, from andyduff's list, I need

turbo bypass kit

upper-lower intake gasket

throttle body gasket x 2

IACV gasket

EGR gasket x 2

 

3) Is there anything else I should be doing at the same time while we're fiddling about down there?

 

Like is it a good time to replace coilpack connectors?

 

No mods to the engine.

 

TIA - Gio

Hiya Mark

 

Is a good point about having more room, perhaps I'd be best to wait.....it arrives in just over a weeks time.

 

I havent been on this TTnet site, I take it its another site alike 300zx.co.uk?

 

And bypassing the turbos seems like a really good idea, this is a def for me I think. And the less pipes under that plenum the better.....its a jungle out there! :D

 

Thanks for your advice....

 

Hello matey,

 

Ask on TTnet to see if anyone has removed the egr in situ, I have not heard of it being done.

 

The PRVR adjusts fuel pressure according to the fuel temp, it quite often malfunctions and can make you engine run lean and go bang :slap:

 

 

The turbo bypass removes the heating to the throttle bodies and the plenum, to avoid the throttle bodies freezing open when V cold, pretty redundant when you consider all the dough we spend on cooling the charge air, there are several write ups on how to do it on ttnet.

 

 

I don't think it would make too much of a difference doing the man conv with the plenum in place, but it is always nice to have more room.