Cruise control surging problem..?

Posts specific to the 3.0 litre NA H6 engine

Cruise control surging problem..?

Postby natedogg » Sun Sep 30, 2012 10:51 am

Hi there,
Just bought a MY06 3.0RB 6MT and all is going great except when cruise control seems to "surge" when activated, kind of like if you were lightly giving a accellerator pedal a press every second. The tacho and speedo dont move at all - pretty odd...?

Have given the old google a hiding having a look - a forum post mentioned that it is a "known issue" - want to know if this is the case or not? Talked to Subaru and they will happily disgnose at a rate of $130 per hour, surprising that? But dont really want to waste money if this isnt fixable. No other engine lights or anything else is amiss.

Any thoughts from anyone?

Also doesnt seem to like "full lock" in the steering - feels like something is rubbing - maybe this is normal.
Any advice from anyone on these issues would be appreciated as well as any do's or do nots regarding this model (apart from the obivous stuff, ie: ill try not do ant 6k launches)

Thanks!
natedogg
 
Posts: 3
Joined: Sun Sep 30, 2012 10:41 am
Location: Sunshine Coast, Queensland
Car: MY06 Liberty 3.0R B 6spd
Real name: Nathan

Re: Cruise control surging problem..?

Postby Zaccy182 » Sun Sep 30, 2012 12:04 pm

Re full lock:
viewtopic.php?f=16&t=18363

Not sure what cruise control surging could be, hope that link helps.
[ 05 Liberty GT 5MT Wagon ]
240,000kms -mostly stock- going strong
Tune by Matt from KiDo | COBB short shifter + kartboy bushings | Whiteline sway bars | GFB respons BOV | K&N panel filter | eBay 3" cat-back to 2.5" Y pipe exhaust | 8000k HIDs | Lenso 17" Project D Spec B wheels
User avatar
Zaccy182
 
Posts: 306
Joined: Tue Jul 17, 2012 4:55 pm
Location: Canberra
Car: 05 GT Wagon
Real name: Zac
Profile URL: viewtopic.php?f=10&t=18204

Re: Cruise control surging problem..?

Postby paggaz » Sun Sep 30, 2012 12:43 pm

The surging problem was just recently discussed in a thread on ozFoz.com: http://ozfoz.com/forum/viewtopic.php?f= ... l&start=10

It's all in the stock Subaru tune.
Throttlehappy (aka Matt @ KiDo Racing) gave an easy to understand explaination.
I hope you don't mind me passing on the information Matt.

throttlehappy wrote:Cruise control system has a large 'angle of attack' on the throttle and accelerator which makes maintain a constant speed(and constant boost) very difficult

Image

This is the stock accelerator pedal... 800rpm and 0% accelerator pedal is the blue dot, you can see the sudden 'ramp up'


throttlehappy wrote:Tuned

Image


Solution: Get a tune from Matt and you won't look back! :) viewforum.php?f=63
User avatar
paggaz
 
Posts: 1237
Joined: Wed May 30, 2012 5:56 pm
Location: Townsville, QLD
Car: 2007 GT Spec.B Wagon Silver
Real name: Nathan
Profile URL: viewtopic.php?f=10&t=17423#p241526

Re: Cruise control surging problem..?

Postby Tradewind » Tue Oct 02, 2012 7:26 pm

Yes

GET IT TUNED :mrgreen: :mrgreen: LOTS of problems go away
2015 Liberty 3.6R (6GEN) - Raptor headers and Raptor SUPER MAF
Tradewind
 
Posts: 2040
Joined: Tue Mar 15, 2011 3:00 pm
Location: Gordonvale Qld
Car: Grey MY15 6GEN 3.6R - Raptor MAF
Real name: Tim


Return to 3.0R & 3.6R engine specific

Who is online

Users browsing this forum: No registered users and 24 guests