RB20DE Running Rough After Plenum Change

[Davidson96]

Hey everyone, so I thought I'd change my intake plenum so it was a forward facing one,

and when I turned it on, I began to regret it..

It's idle is all over the shot wether it is cold or warm, it sounds and feels like a misfire, it smells rich, spits from the exhaust and the idle constantly hunts..

I've checked for vacuum leaks with Carby clean, yet to do with a vacuum gauge to double check, I've checked all plugs and set the gap to factory 1.1 mm I've remove each coil pack while it's running and all are sparking nicely,

Ive made sure the tps is set to 5 volts, I've checked the maf for correct voltage and it's within spec I've cleaned the AAC and the Cold start reg with no result..

Anyone have any ideas?! Please?

I will post a video below of the car running

[niZmO_Man]

Put the stock one back on?

[GH05T]

if you change the plenum and you have an issue, why would you think the issue is elsewhere?

 

[KiwiRS4T]

Replace stock plenum sell FFP

[Davidson96]

Figured it out, it was the way I had the vacuum hoses plumbed in, swapped over now runs perfectly

[niZmO_Man]

How many horses did you lose?