16622 - Manifold Pressure / Boost Sensor (G31): Signal too High

[mark garfoot]

my leon has just thrown this code up after changing the coolant temp sensor (dont know if its a coincidence) can anyone point me in the right direction of where it is and pics would be a huge help, im suffering from spluttering on boost at low revs could this be the cause many thanks

 

[mark garfoot]

after abit of research i believe its the map sensor where is it located please, anyone know roughly how much they cost

 

[mark garfoot]

found it its on the intercooler

 

[aviaa25]

you don't need to change the sensor!
its only say that your car boost more then ecu requested.
clear it and see if it return again.
did you changed your ecu program, mbc, N75?

 

[mark garfoot]

hi i have cleared it, it hasnt come back up which has left me stumped now for what my boost problem is, the car has been remapped but i had the problem before it was done, but it didnt splutter as much as it does now, ive changed all boost hoses, new coilpacks and plugs, n75, new maf, new recirc valve, complete new upper and lower breather pipes, done plenty of boost pressure tests, new thermostat and sensor. im not using a mbc, what irritates me is it only does it under 3000 revs any thing above it boost perfect

 

[aviaa25]

post some pic's of your engine from a diffrent angle
mybe something dosn't connect right

 

[mark garfoot]

just took some will upload asap if i remember how lol thanks

 

[mark garfoot]

http://img812.imageshack.us/img812/2170/leonengine016.jpg
http://imageshack.us/photo/my-images/62/leonengine015.jpg
http://imageshack.us/photo/my-images/33/leonengine017.jpg
http://imageshack.us/photo/my-images/534/leonengine018.jpg


hope they work lol if you need anymore let me know please many thanks

 

[aviaa25]

evrything look's fine.

 

[mark garfoot]

lol any ideas on what could be my boost problem thanks

 

[aviaa25]

im not sure that im understand what is "spluttering on boost at low revs"

low rev i get it
what is spluttering on boost ?

 

[mark garfoot]

its like the turbo is kicking in and out then after 3000revs its fine

 

[aviaa25]

its heppen on evry gear, or just 1,2,3?
how many miles your car at?

 

[mark garfoot]

car has done 120k
its mainly in high gears
if i pull off quick from a standing start its perfect but if im cruising along and put my foot down it splutters bad then its as if the turbo kicks in and its fine

 

[aviaa25]

i'm guessing that you never changed or checked your fuel pump
check it for a fuel flow rate
i think that the fuel pump dosn't delivery enough fuel

 

[mark garfoot]

ive never checked that thanks, hows best to check it? thanks

 

[aviaa25]

make the test in a garage that know VAG cars

 

[mark garfoot]

will do thanks, can you check the flow rate with vagcom?

 

[aviaa25]

no you can't..
but you can get a clue, do a log of block 020,002,115 for cf timing maf reading and boost , fourth gear start from 2000rpm all the way to the red line. pedal to the metal
and post it here.

 

[mark garfoot]

will get one up asap thanks