why is my overboost cutting in on 7psi of boost, doesnt do it all the time but once or twice a day cheers andy

 

Odd mate???

check all the boost pipes etc etc, if you ain't got a gauge in it borrow one from another one of your rs's

Mine used to retard in 5 gear on constant boost on the motorway so i backed it off slightly and problem sorted and that was 9psi other than this get it tuned mate may help

Let us now of the outcome andy.

 

Could be the chip gone bad if you have one the amal valve or ECU could be playing up. How new is the actuator the spring inside could be getting jammed up

 

The turbo and actuator has done lees than 200 miles old it has a boost gauge was boosting 11 psi so adjusted it to 7psi but only seems to do it when engines cold otherwise its ok ,very strange

 

Is it chipped? Guessing it is?

 

Dont no if its chipped or not lol ill have to look threw the folder

 

get in the passenger side of the car look up behind the dah and you will see the ecu and it is very easy to tell if the chip i hanging out the bottom or not fella

 

OK ill look in the morning but what dif will the chip make to the overboost cutting in ,as its only running 7 psi

 

well if its chipped it shouldn't have the boost cut kicking in as it should be good for going over this so it could lead to the chip having gone corrupt

 

The car came from cheshire and going by the hundreds of receipts its spent most of its life at JOHN NOBLE MOTORSPORT and the other half at TURBO TECNICS so i reckon theres a good chance its chipped lol

 

just had a look there is no chip fitted to the frst.

 

ah so its been removed at some point was there a cover over the port at the bottom of the ecu ? as this means it hasusually had it removed

does the car run a boost gauge ? as the actuator may be letting it hit a bit too much boost etc and causing this as i had my car set to hit and hold a perfect 7psi when i bought it and just of late it started to hit 8-9 psi and boost cut so i have ordered a chip a front mount and a new actuator

 

As 9-10 is max i would say the boost gauge could be a bit out i would turn down the actuator a tad just to see how it feel's rather then looking at the boost gauge as some can be out by 5 psi if it feel's ok i would get a new boost gauge and a chip. If it's not could be the ECU playing up

 

Are you sure it's over boost could be crank sensor playing up or the TPS as that play with the throttle would feel a power drop