loss of power

johnnymolloy · March 07, 2010, 02:28:46 PM

driving along car is fully warmed up and put the foot down in 1st 2nd and 3rd close to the redline and everthing is fine until i get to 3rd their seems to be a point around 6ish thousand revs were the power jus lets off i have nt tried it in fourth yet cause i havent found anywhere i can do it yet jus wondering does anyone know wats goin on

cheers

philiwily · March 07, 2010, 06:12:04 PM

Fuel cut due to overboosting maybe? Might be better putting up what mods you have.
Phil

johnnymolloy · March 07, 2010, 08:57:22 PM

cheers forgot about that

here it is
Greddy T-78 turbo kit
Ext Wastegate
Screamer pipe
Street ported by pip gardner @ wgt autos
Greddy front mount intercooler
1600cc injectors
Uprated fuel pump
Apexi power fc commander mapped for 95 fuel
Straight through exhaust system
Sychronic synapse blow off valve welded on
Greddy tb elbow
Godspeed aluminium radiator
Racing small battery
Greddy oil catch can
Greddy Profec II boost controller

philiwily · March 07, 2010, 10:33:37 PM

If you check the boost setting on the PFC and make sure its well above the setting on the Profec this will rule out fuel cut.

johnnymolloy · March 08, 2010, 02:40:51 PM

cheers mate ill check it

johnnymolloy · March 14, 2010, 05:30:10 PM

i checked the greddy profec and wat i can see is the boost limit is set to 1.0 bar which looks right as the car was mapped to .85 bar but i cant make out wat the limit is on the apexi as im not sure where it is in the menu jus wondering can someone tell me where to find it

philiwily · March 14, 2010, 10:12:20 PM

Go into settings then into boost. Whats the pri/sec setting on number 1, if its on 1.

johnnymolloy · March 15, 2010, 06:27:56 PM

cheers mate jus checked it their and the pri/sec is at 1.0bar for both settings 1 and 2

johnnymolloy · March 16, 2010, 10:39:12 PM

can anyone help

philiwily · March 17, 2010, 02:05:44 AM

Get the commander to monitor boost and inj juty then get your passenger to tell you what they are reading when it cuts out.
That would rule out boost cut at least.

johnnymolloy · March 17, 2010, 02:33:58 AM

cheers mate ill do it tomorrow and let you know

dave-izzle · March 18, 2010, 04:54:13 PM

your coil might be on it\'s way out?

johnnymolloy · March 18, 2010, 10:40:13 PM

how can you tell if the coils on its way out

dave-izzle · March 19, 2010, 07:30:38 AM

a garage might be able to hook up a meter and test the flow of power through the coil? not sure on that one

johnnymolloy · March 21, 2010, 08:04:45 PM

right i went out and this is wat i got for the injector duty and boost when the problem starts in third gear

injduty: 42% to 44% to 46% to 48% to 50% to 52%

boost: was .78 to .81 and it jumped around between those figures during the lack of power

also its backfiring when the problem starts