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Model specific boards => Golf mk4 => Topic started by: shaft69 on 15 June 2012, 12:21

Title: Poss fault found on rolling road run.
Post by: shaft69 on 15 June 2012, 12:21

Took car to check hp after fitting few things fitted forge actuator to ko3s, forge dv and velocity stack intake. While on roller notice from print out boost dropping off poss to quick. There are no faults in ECU have n75f valve fitted. Any ideas??? Running APR stage2 map.
(http://i11.photobucket.com/albums/a197/shaft69/IMAG0160.jpg)

Title: Re: Poss fault found on rolling road run.
Post by: Yohan on 15 June 2012, 12:44

Actuator setup properly?

Maybe the style of mapping?

Title: Re: Poss fault found on rolling road run.
Post by: DunnDeal12 on 15 June 2012, 12:45

boost leak?

Title: Re: Poss fault found on rolling road run.
Post by: jamie1989 on 15 June 2012, 12:57

Actuator set up I reckon, How many turns did you turn it to preload?
Also what colour spring have you used?

Title: Re: Poss fault found on rolling road run.
Post by: shaft69 on 15 June 2012, 13:14

Quote from: jamie1989 on 15 June 2012, 12:57

Actuator set up I reckon, How many turns did you turn it to preload?
Also what colour spring have you used?

3 full turn back and both dv and actuator have yellow spring. Car made 220bhp and 257ftlb tq so power itself is about right just dont understand why drops off like that.

Title: Re: Poss fault found on rolling road run.
Post by: shaft69 on 15 June 2012, 13:29

Poss boost leak if so how do I check???

Title: Re: Poss fault found on rolling road run.
Post by: jamie1989 on 15 June 2012, 13:35

Maybe map then? who mapped it?

Title: Re: Poss fault found on rolling road run.
Post by: Yohan on 15 June 2012, 13:49

Quote from: shaft69 on 15 June 2012, 12:21

Took car to check hp after fitting few things fitted forge actuator to ko3s, forge dv and velocity stack intake. While on roller notice from print out boost dropping off poss to quick. There are no faults in ECU have n75f valve fitted. Any ideas??? Running APR stage2 map.

Title: Re: Poss fault found on rolling road run.
Post by: shaft69 on 15 June 2012, 14:03

I'll pop into awesomegti on way home ask them, there doing APR again instead of revo. Car itself drives spot on, just noticed it on roller print out. Can u with vagcom check actual and specified n75 reading???

Title: Re: Poss fault found on rolling road run.
Post by: jamie1989 on 15 June 2012, 14:19

Quote from: Yohan on 15 June 2012, 13:49

Quote from: shaft69 on 15 June 2012, 12:21

Took car to check hp after fitting few things fitted forge actuator to ko3s, forge dv and velocity stack intake. While on roller notice from print out boost dropping off poss to quick. There are no faults in ECU have n75f valve fitted. Any ideas??? Running APR stage2 map.

 :embarassed: Its in his sig too haha

Let us know the outcome mate.

Title: Re: Poss fault found on rolling road run.
Post by: Wazzzer on 15 June 2012, 15:29

You got a bhp/torque chart to go with that?

Title: Re: Poss fault found on rolling road run.
Post by: shaft69 on 15 June 2012, 21:23

At work been onto APR said poss down to actuator as way there map are done around stock waste gate spring pressure apparently. Just checking my hp dyno printout hp down by 6hp after actuator fitted.