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Tolch
12th February 2015, 07:55 PM
Recently had a 3" system fitted as well as the Torqit power module and Pedal torq to my 2013 ST Patrol. Wow, what a difference. However, seems it has highlighted a problem that I believe has been with the Patrol since new. Under power it feels like either fuel starvation or a dicky throttle sensor causing the engine to surge on and off. The acceleration is like a sine wave; comes on then goes off. Most noticeable at about 3k rpm. Anyone got any ideas?
Clunk
12th February 2015, 11:24 PM
Just out of interest, we're the 2013 models included in the TPS recall and if so, was yours done? Not saying that's the issue but could be a possibility. Does your engine light come on?
threedogs
13th February 2015, 09:58 AM
Out of interest do you have a boost gauge fitted ?
Getaboutabit
13th February 2015, 10:45 PM
Mine will do this from time to time not sure why.
Have just fitted boost gauge so maybe that will
show something
doka404
14th February 2015, 08:06 AM
EGR valve maybe? Mate had a similar thing with his landrover, after an ecu remap (which should have disabled the egr) it was surging due to the egr opening and closing. They downloaded a new map and fixed the issue...not saying yours is related to a ecu map, but maybe egr related
threedogs
14th February 2015, 08:16 AM
If it is the EGR block you might need to drill a 10mm hole in it
Getaboutabit
27th February 2015, 10:14 AM
Just a quick up date my boost gauge pulse I suppose you could say
from around 11 to 16 PSI mostly after changing up into 4th while
still under reasonable throttle Not sure if the EGR is blocked or not.
threedogs
27th February 2015, 10:34 AM
Just a quick up date my boost gauge pulse I suppose you could say
from around 11 to 16 PSI mostly after changing up into 4th while
still under reasonable throttle Not sure if the EGR is blocked or not.

Have you fitted a tigged IC yet and check all your hoses [boost] for tightness and leaks
Getaboutabit
27th February 2015, 10:50 AM
I'm guessing by tigged IC you mean an after market Inter cooler Then no I
have the original factory job. I'll check all the lines this arvo
Thanks
threedogs
27th February 2015, 03:01 PM
is the IC oily to look at ,,,,what year Patrol do you have'
Sometimes the engine cover rubs holes in the IC
Winnie
27th February 2015, 03:03 PM
is the IC oily to look at ,,,,what year Patrol do you have'
Sometimes the engine cover rubs holes in the IC

First post John, 2013
Are the air and fuel filters clean?
threedogs
27th February 2015, 06:05 PM
First post John, 2013
Are the air and fuel filters clean?

answer was for getabout yeah he should start his own thread lol
Getaboutabit
27th February 2015, 06:41 PM
Sorry for hijacking the thread I'll start a new one shortly