There are some posts that mention this code, put P2098 in search and read them, some conflicting reports I have not specified one in particular.

 

180, I'm getting ready to do this soon, I would just like to be clear. The MAF housing and attached elbow don't need to be changed, just the throttle body and o-ring? Is the existing elbow and MAF housing 74mm? I already have the M/B engine cover on it.

Just follow Reckahs PDF for all instructions, it tells you the O-ring part number as well. If you know of a supplier of O-rings you can take the old one there and save some money. A Viton O-ring should be used because of the highish temperature.
The PDF talks about a larger MAF but you can ignore that info if you are not adding them.
For better performance you should add the larger 74mm MAF.
The MAF sensor in the car now is fine, even if the MAF itself is changed to the 74mm one the MAF sensor now in use is put in the 74mm MAF sensor.
Well I read on and you already answered me, Thanks

 

Is there a drawing or similar where it can be seen where and how the CAI connects?
Does it connect to the MAF?
If so would one need a 68mm MAF or 74mm MAF?
Could a 74MmMAF be connected to a 68mm TB?

Alwin

 

Don't use Vaseline on rubber O-rings or any rubber. Vaseline is petroleum based and can cause rubber to swell and weaken. Instead use silicon grease.

Remember from chemistry?....that likes can dissolve likes.