boost problem

[RS_TRAYNOR]

hi there i recently bought an ibiza cupra 20v turbo on a 2000 plate. it was boosting at 8 psi but when i disconnected the battery to fit new headlight bulbs its been boostin at 5/6 psi i thibnk i may have reset the ecu and lost the map is this possible cheers.

 

[daves ibiza]

Are u shore ur car is mapped mate at 8 psi and no mate it shouldn't delete map

 

[RS_TRAYNOR]

thats what i was thinkin mate as theres no proof of it being mapped.its just odd that it was boosting at 8 psi and now its 5/6 psi. i did notice that a small vacum pipe that run along the back off the engine was melted due to the exhaust heat so not unless it was that that caused it to boost at 8psi due to drawing in unwanted air.iv since replaced the pipe and its stayed at 5/6 psi.what is the standard boost pressure that a cupra runs?

 

[daves ibiza]

7/8 psi mate standard unplug n75 see if it's that bud

 

[Ibiza125]

Get it on vag com. Show us the codes that come up and clear them. Might just be a code that has stayed since the melted hose.

 

[daves ibiza]

True I didn't think of that lol. Am I right in saying 8 psi isn't a mapped car

 

[RS_TRAYNOR]

there was a light that was on think it was edc or summit like that its off now.what is the n75?? sorry im new to this vag stuff, im used to dealing with rs turbos

 

[Ibiza125]

True I didn't think of that lol. Am I right in saying 8 psi isn't a mapped car

Yeah 8 psi would be standard.

there was a light that was on think it was edc or summit like that its off now.what is the n75?? sorry im new to this vag stuff, im used to dealing with rs turbos

Do a search on the N75 Lots of info on it on here

 

[daves ibiza]

Epc mate n75 is a sensor thingy on intake pipe measures boost ect

 

[RS_TRAYNOR]

ye iv just came across a load of info onit, my mate said summit about that now i no what it is.thanks for the help lads much appreciated