View Full Version : No Power in Upper Rev past 4k
ThegreenVTR
17th April 2008, 20:32
any ideas?:y: Cheers
pjm300
17th April 2008, 20:40
check your back box, see if the wadding has come loose and is blocking the exit
ThegreenVTR
17th April 2008, 20:43
checked all the exhaust, could it be coil pack?
pjm300
17th April 2008, 20:45
could be, are there any other symptoms?
is your induction kit blocked? given it a service recently? changed anything recently?
Jonny-R
17th April 2008, 20:45
I know you have said you have checked your exhaust, but have you checked your Catalyst converter? A collapsed CAT will strangle nearly all power!
ThegreenVTR
17th April 2008, 20:47
I know you have said you have checked your exhaust, but have you checked your Catalyst converter? A collapsed CAT will strangle nearly all power!
Decatted pipe mate ;)
pjm300
17th April 2008, 20:49
did it happen suddenly, or has it got worse over time? any warning lights showing?
ThegreenVTR
17th April 2008, 20:49
could be, are there any other symptoms?
is your induction kit blocked? given it a service recently? changed anything recently?
Replaced the filter last week. Service last week new oil, air, fuel filters including plugs and obv oil lol. Replaced the fuel tank but that is it? Could the pump in the tank itself be blocked?
ThegreenVTR
17th April 2008, 20:50
took the coil pack off and connected plugs too about an inch spark on all of them but just thinking it could be killing it when under compression?
pjm300
17th April 2008, 20:52
and its been worse since you did these works yeah?
ThegreenVTR
17th April 2008, 20:52
suddenly after i had done the tank but i cant see anything obv rong. The engine yellow light is coming up on the dash, had it plugged in yesterday came up with a faulty map sensor, replaced that with a new one today and still it does it. Have tried un plugging ecu and re connecting it but still nothing
ThegreenVTR
17th April 2008, 20:53
yea i know it points everything to the tank but i have tried everything
pjm300
17th April 2008, 20:55
how long did you leave the ecu disconnected for? have you had the faults reset since you changed the MAP sensor?
it might be the pump has picked up some shit when you changed the tank, or might be a burnt out pump which isnt playing ball. have you checked the fuel filter?
ThegreenVTR
17th April 2008, 20:56
changed the fuel filter the day after changing the tank. Left the ecu disconnected overnight. Had all the faults reset today at my local garage
pjm300
17th April 2008, 21:02
hmmmm
does the fuel pump sound right? is the ecu light still on?
ThegreenVTR
17th April 2008, 21:10
high pitched whine? its higher than the old one anyway, and yea ecu light still on. looking in my haynes manual says it goes into a safe mode when that light comes on.
pjm300
17th April 2008, 21:13
tbh it could be that the pump is pumping against a restriction... so there could be a blockage right after the pump, or its just funked.
do you ahve the old pump from the old tank?
i take it its stil a vtr engine in there, so just the flow to the rail? have you tried taking the pipe off the rail and seeing if theres suitable flow there, or getting a pressure gauge to see how much pressure there is?
jablitt
17th April 2008, 21:14
MAF sensor? coil pack? my money would be on either of them.
hows the over all performance of the car besides the problems at 4,000 RPM?
ThegreenVTR
17th April 2008, 21:15
where is the maf sensor located its a silver top vtr. I beggining to hink coil pack.
pjm300
17th April 2008, 21:16
if its coil pack, ive got one for a mk1 silvertop vtr sitting in my front room lol
ThegreenVTR
17th April 2008, 21:19
how much would you want for it?
pjm300
17th April 2008, 21:20
30 + delivery mate
ThegreenVTR
17th April 2008, 21:22
will let you know buddy and where will i find the maf sensor?
Lozza_vtr
17th April 2008, 21:28
There is no MAF sensor on saxo's.
ThegreenVTR
17th April 2008, 21:31
if its coil pack, ive got one for a mk1 silvertop vtr sitting in my front room lol
I will prbably pm you about that tomorrow mate, cheers chris :y:
pjm300
17th April 2008, 21:35
ok no probs mate, just let me know :)
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