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#1 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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Hi people.
Yesterday afternoon, I had the Mrs AUII checked over for rego. While it was in there, I asked the guys to pull any error codes out of the computer. Anyway, the car has been running horribly for quite a while now, Not starting in the morning when cold, running really rich, and lost a lot of get up and go. I've been scratching my head over the cause for ages and it had me stumped. I'd tried replacing the 02 sensor, plugs, leads. Cleaned the T/body and ISC, reset the ecu, all to no avail. So wasn't I pleasently suprised when the computer actually made my job easier for a change, by giving me an error code for the knock sensor. Now what I wanted to know, is what the symptoms of a dud, or malfuctioning knock sensor are. I know that its job is to retard the timing when the car starts pinging, but if it was faulty could it cause so many drama's with the car? Rich, lack of power, unco-operative starting etc Cheers for your input people...
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#2 | ||
Sales Representative
Join Date: Mar 2007
Location: Young
Posts: 5,314
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Put it in the "Heal Up Bin"... lmao! works for others it seems :P
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Project InfernoSR - Back Burner Project FeralTerra - No longer Project Fairmont Prodigy - Sold Thanks go to: MY WIFE! Bathurst Brakepro Undacar eBay!! |
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#3 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: Perth, South
Posts: 3,064
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well, one would assume that it the sensor is faulty, it thinks the engine is pinging all the time, so it richens the mixture and pulls timing to stop it from pinging, but because it's not pinging, the car actually runs like crap.
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#4 | ||||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
Exactly your symptoms described.
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07 Renault Sport Megane F1 Team R26 #1397
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#5 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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Fair dinkum ^^^^, so all this crap that I've been trying to work out for the last 2.5 years is due to a single dud sensor. Excuse me but F@rk. Should have tested the ecu years ago lol. Mrs has been getting 21-24 litres per 100km, and going off her head about it lol. It uses more than my v8 hehe
So how much do knock sensors cost people?
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#6 | ||||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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#7 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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Thanks for the help everybody :-)
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#8 | ||
Back to N/A land
Join Date: Jan 2005
Location: Perth
Posts: 610
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Learn something new everyday, didn't even know our Windsor had Knock Sensors
E series did not though ? |
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#9 | ||||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
Our wheezas don't have them, trust me on that.
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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#10 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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Yeah, russell knows all about that. If we had knock sensors he probably wouldn't have a stroker at the moment roflmao... Not that its a bad thing. Good excuse as any lol
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#11 | ||||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Quote:
![]() Damn detonation ![]() Still it did give me an excuse :evil3:
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Quote:
07 Renault Sport Megane F1 Team R26 #1397
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#12 | ||
Back to N/A land
Join Date: Jan 2005
Location: Perth
Posts: 610
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Hahahaha on I6 I should have taken a little more time in the reading...
Russ don't go hating on our Wheezers cos you melted a slug and had to build a tough stroker ;) ;) ;) |
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#13 | ||
Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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Just goes to show even if you're a bit handy, its very worthwhile taking your car to a real mechanic with a scan tool.
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Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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#14 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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^^^ Thats it mate. A lot of time wasted, and I never would have known till the error code came up. So, if your car has got a problem, and you can't figure it... Go get your codes checked
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#15 | |||
Sly like a G6
Join Date: Jun 2006
Location: Hunter Valley Whine Country
Posts: 1,808
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Quote:
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The Frankenfalcon... AU1.5 Wagon, BA brakes, AU2 booster, BA2 XR6T engine, stock from airbox to turbo, 8psi/98 octane tune 240RWKW, BF XR6T cat, quiet 3" zorst, Pex BSO660 & BSO439 mufflers, 84 db, built BTR box, 3.08 LSD, Emer SVI LPG, AU1 XR8 alloys, Momo wheel, JVC KDR746BT head unit, Aerpro steering wheel control wiring. Sleeper, anyone? |
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#16 | |||
Sly like a G6
Join Date: Jun 2006
Location: Hunter Valley Whine Country
Posts: 1,808
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Quote:
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The Frankenfalcon... AU1.5 Wagon, BA brakes, AU2 booster, BA2 XR6T engine, stock from airbox to turbo, 8psi/98 octane tune 240RWKW, BF XR6T cat, quiet 3" zorst, Pex BSO660 & BSO439 mufflers, 84 db, built BTR box, 3.08 LSD, Emer SVI LPG, AU1 XR8 alloys, Momo wheel, JVC KDR746BT head unit, Aerpro steering wheel control wiring. Sleeper, anyone? |
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#17 | ||
true blue
Join Date: Sep 2006
Posts: 34
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Before you go and buy a new sensor, check the multi-plug that is located at the back of the engine on the intake side. Mine was corroded and not making proper contact due to engine washes. Had similar problems that got fixed by just cleaning the plug and spraying it with Q20 or WD40. Make sure that the knock sensor bold is torqued at the right Nm, otherwise it might influence it working operation as it picks up frequency.
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#18 | ||
Starter Motor
Join Date: Jan 2012
Location: Townsville
Posts: 25
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Sorry to bring this thread back from the dead but I've just been able to find my Knock Sensor was faulty. For 18 months it hasn't thrown any error codes and cost me 3.5K trying to find the problem. It was inhibiting TC lock up and felt like the tranny was slipping so tranny rebuilt. Leads, coil pack, intake manifold gasket, fuel pump, TPS x 2, ECU were all replaced and only now the error code has come up. Took it into an auto electrician yesterday to have electric brakes disconnected and he tested the wiring harness,ECU inputs etc and found this KS fault. I had a look around on the web and found other people were getting the same symptoms without being able to pinpoint the fault.
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#19 | ||
Au Falcon = Mr Reliable
Join Date: Sep 2009
Location: North West Slopes & Plains NSW
Posts: 4,076
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Glad to hear you found the problem eventually
![]() cheers, Maka
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Ford AU Series Magazine Scans Here - www.fordforums.com.au/photos/index.php?cat=2792 Proud owner of a optioned keeper S1 Tickford Falcon AU XR6 VCT - "it's actually a better-balanced car than the XR8, goes almost as hard and uses about two-thirds of the fuel" (Drive.com 2007) |
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#20 | ||
FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
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Post 17 SA-AUII-MAX mentions corrosion in the engine bay wiring loom plug due to high pressure washing, this is why for 8.5 years i have never put a high pressure hose near the engine bay(fairdinkum ! ), that's my story and i'm stickin to it ......... no really
![]() On another note i have always suspected very high pressure water near delicate crank angle sensors to also be a possible problem too..... again no engine pressure wash for this little black duck and 8.5 years of trouble free motoring ![]() |
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#21 | ||
Starter Motor
Join Date: Oct 2023
Posts: 1
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Hey guys,
I’ve got the same knock sensor fault on my auII Ute I6 but cannot get rid of it. I’ve tried changing the knock sensor and have changed the ecu but it is still coming up, the knock sensor plug has continuity to the ecu and has a supply voltage, before realising it was the knock sensor I changed out the O2 sensor, new plugs and leads, new coolant temp sensor. I’ve also heard the you can squash a knock sensor so I have a new one on the way and will get a torque wrench when it arrives My question is what else should I try if the new sensor does nothing? Also sorry for bringing back an thread Last edited by LukesAu2; 04-12-2023 at 02:45 PM. Reason: Add more info |
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#22 | ||
FF.Com.Au Hardcore
Join Date: Sep 2010
Posts: 2,441
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#23 | ||
Next upgraded Mk1 Leopard
![]() Join Date: Jan 2005
Location: Sydney, in the burbs
Posts: 4,908
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Fren Tree Gully wreckers in Victoria
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Plastic Surgery 1 AUII Monsoon Blue How 2's: Change rear view mirror, Install backfire valve, Change foam front seats, Install auto transmission cooler, Replace Trans Shift Globe, Remove front door Trim, Paint AU headlights, install door spears, Premium Rear Parcel Shelf, go here...
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