ok,
Mate has bought a single turbo FD3S.
Up until yesterday it was boosting fine. It has a Greedy Profec boost controller and an Apexi power FC and commander.
Now then, today on the drive to work he was complaining of little to no boost.
I have had as much of a look as i can, everything seems to be in place in the engine bay.
It would seem that the turbo is spooling up, but not generating any boost (enough boost to get the dump valve excited), the apexi commander is reading 0 bar and so is the boost gauge.
The greedy controller had been messed with and was set too low, so i set it back to 0.9bar on lo setting and 1.2bar on the high setting but still no boost??
Anyone got any ideas??
Thanks
Turbo:burnout
Id turn the boost controller off for now to ignore it and narrow the prob down,
is it twin or single turbo,has it got a boost guage,get your mate to rev it uop while you listen for air leaks or blown hoses
Single turbo mate. It has a boost gauge and i cant hear any boost leaks and there are no signs of blown hoses.
It did have a new head unit fitted yesterday but i find it hard to believe that it is causing any issues.
I have a feeling it is a setting issue but i\'m not sure what the setting were or should be?
Did the people fitting the stereo drive it?
ok mate,does the boost guage go to vac at idle?
You wont get much boost sitting still what does the gauge go up to on stand still or on the road?
if you turn off or disconnect the boost controller it should boost normally as it will use the wastegate spring to controol pressure if it it doesnt i suspect you have a problem with the hotside of the turbo or wastegate,
Though if it was a wastegate fault you would hear it failing and the exhaust gas coming out.
Quote from: a.tapos;782409Did the people fitting the stereo drive it? I can only assume not
ok mate,does the boost guage go to vac at idle? Yes (assuming you mean goes to the very bottom?)
You wont get much boost sitting still what does the gauge go up to on stand still or on the road? Both standing and driving it only gets to 0bar
if you turn off or disconnect the boost controller it should boost normally as it will use the wastegate spring to controol pressure if it it doesnt i suspect you have a problem with the hotside of the turbo or wastegate,
Though if it was a wastegate fault you would hear it failing and the exhaust gas coming out.
I doesn\'t sound wrong when driving and giving it full throttle, I will see if i can try and give it a go with the boost controller off but it was annoying the hell out of the residents next to the job we are on so may have to leave it until later.
Is there a way of resetting the boost controller? I have a feeling it is this that is causing the problem. The head unit installers may have had the battery off, could this have done something???
if they fitted a new stereo they may have disconnected the bat... dont know if that could be it, could have reset the bc
if the commander and the boost gauge are reading no boost then you don\'t have any boost. Soooo...
1) The boost is being dumped somewhere (although you say you can\'t hear it)
2) Turbos are both ruined (unlikely)
3) Wastegate is stuck open and passing all exhaust straight past the turbos
HTH
graeme
i thought i had posted this up last not but obviously not.
It turned out to be the hard pipe elbow to the turbo had popped off, surprised i didnt hear it but a good yank on the pipes last nite showed the problem!!! Back to full boost and a happy man!! Thanks for the input tho guys
Quote from: Turbotez;782548i thought i had posted this up last not but obviously not.
It turned out to be the hard pipe elbow to the turbo had popped off, surprised i didnt hear it but a good yank on the pipes last nite showed the problem!!! Back to full boost and a happy man!! Thanks for the input tho guys
You posted that sentence in a thread about somebody trying to fix their Microsoft Office.. haha :Giggle
http://www.mazdarotaryclub.com/forums/showthread.php?t=72035&highlight=outlook
sometimes if the boost leak is that big and obvious its hardest to spot.
Thats why we always start at the simple checks,well done though
Quote from: Brooktini86;782553You posted that sentence in a thread about somebody trying to fix their Microsoft Office.. haha :Giggle
http://www.mazdarotaryclub.com/forums/showthread.php?t=72035&highlight=outlook
suppose thats what you get for looking on here at work, got pulled away from the lappy then a mad rush to post it before i did one!!!
Quote from: Turbotez;782834suppose thats what you get for looking on here at work, got pulled away from the lappy then a mad rush to post it before i did one!!!
Ha, all good, gave me some amusement anyway! Glad you got it sorted.