Sierra cossie (BOOST) issue
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Sierra cossie (BOOST) issue
Right the cossie has stated to play up!
Built by SCS last year the whole lot new senors etc,
Anyway, Was taking it up the road and it's like stuttering on FULL boost not really jerky or nothing just stutters also the boost from the turbo sound's like it's on and then off while it's stuttering it's like a switch ON OFF ON OFF ON OFF < Thats how the boost sound's although it's still pulling very well IMO,
Changed the rotar arm dizzy and plug's and gapped them to 22thou.
Run's 21PSI Stage 3.
Also the car is fine winding her up nicely,it's just foot to the floor and usually start's stuttering at 4.5K revs.
Any help much appreciated!
CheeRS
john
Built by SCS last year the whole lot new senors etc,
Anyway, Was taking it up the road and it's like stuttering on FULL boost not really jerky or nothing just stutters also the boost from the turbo sound's like it's on and then off while it's stuttering it's like a switch ON OFF ON OFF ON OFF < Thats how the boost sound's although it's still pulling very well IMO,
Changed the rotar arm dizzy and plug's and gapped them to 22thou.
Run's 21PSI Stage 3.
Also the car is fine winding her up nicely,it's just foot to the floor and usually start's stuttering at 4.5K revs.
Any help much appreciated!
CheeRS
john
Has the fuel pump been rewired, and when was the filter last changed?
ISCV will have no effect what so ever you could unplug if you wanted to, only time it is utilised is at cold starts where air COMPENSATION is required or when there is a high electrical demand etc.
Martin
ISCV will have no effect what so ever you could unplug if you wanted to, only time it is utilised is at cold starts where air COMPENSATION is required or when there is a high electrical demand etc.
Martin
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What are the plug gaps? You need to check the voltage at the pump UNDER load to make sure you are getting correct power, as the old wiring is known for not being up providing the power hence you end up with a lean running engine, does it drive ok apart from at max boost?
Martin
Martin
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What are the plug gaps? You need to check the voltage at the pump UNDER load to make sure you are getting correct power, as the old wiring is known for not being up providing the power hence you end up with a lean running engine, does it drive ok apart from at max boost?
Martin
Martin
Right i'll have to get onto that next lol. Yes start's straight off the key etc run's perfect up the road unless you running max boost
as martin said above mate ,you gotta check the voltage at the pump whilst its under load,but i would rewire it anyway to be on the safe side and change the filter again,theirs a good chance that this is your problem
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