Think you may mean the MAP sensor pipe. It goes from the MAP sensor bolted to top of filter to a nipple under the middle of manifold, you will have to feel for it. Should not be a T piece unless someone has fitted some sort of power box.
RangeRoller dt
Well-Sprung Member
RangeRoller dt
Well-Sprung Member
That blue box is as Wammers said a ‘powerbox’ and will do you no favours if you have an auto. It’s an aftermarket thing like a cheap version of chipping it.
RangeRoller dt
Well-Sprung Member
Pipe should go from MAP sensor on filter housing to under inlet manifold. There’s harness on the box whatever plugs into the box goes to where the box is plugged in the engine.
brianp38dse
Well-Known Member
Mind you I you did not know it's chipped and take it of you will probably be disappointed with how it pulls.
Tenebreaux
Well-Known Member
He will if he doesn't connect the pipe between the inlet manifold and the MAP. When I got mine it wouldn't do above 50mph and took about a week to get there. I think one of the reasons I got it so cheap was because the PO thought the engine was knackered. Four quid to fix.
RangeRoller dt
Well-Sprung Member
Old PSI boxes can be problematic. Tend to be fitted after the engine has lost power due to lack of maintenance
Taking one out is usually an improvement In end the FIP/injectors everything will wear and it won’t run with it plugged in.
Taking one out is usually an improvement In end the FIP/injectors everything will wear and it won’t run with it plugged in.
Radar1946
Active Member
I have been looking through my manual and the bit the blue pipe fits to is a EGR modulator valve. ( which most of you will already know ), so I won't be touching that. I found a photo of a psi power tuning box and it is the same as the one on my car. According to the photo it is just three plugs to disconnect and the blue tuning box can come out.
RangeRoller dt
Well-Sprung Member
There’s 2 different psi boxes one for egr and one for pre. The bits plugged into the box go into where the box is plugged in if that makes sense. Big round one from FIP goes into block, t piece comes out and box with its loom.
You can leave it in if you want to itl just run rich on cold start fuel all the time if it’s working. Not great for heads/auto boxes/FIPs etc but won’t kill it overnight.
You can leave it in if you want to itl just run rich on cold start fuel all the time if it’s working. Not great for heads/auto boxes/FIPs etc but won’t kill it overnight.
brianp38dse
Well-Known Member
Well it looks like the egr is blanked of so I would not worry about that side off it.
At the rear right hand side of the engine bay you will see a valve and a filter the EGR vacuum pipe goes from there to the EGR valve on the front of the manifold
RangeRoller dt
Well-Sprung Member
Originally connects to the egr if you have a blank it may not have anywhere to connect to
Grrrrrr
Technician, Bodgit & Scarper Ltd
You told him the fix afterwards?!
RangeRoller dt
Well-Sprung Member
One in the photo is an aftermarket blank. Pipe Is only there for show to look like it has one as you are not supposed to disconnect/blank it.
As Brian said it’s not currently doing anything
As Brian said it’s not currently doing anything
