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#1 | ||
Regular Member
Join Date: Aug 2007
Posts: 108
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hey guys
got a AU3 swapped motors on the weekend to an S1 motor 119km.. now having some running problems, on petrol when i am idling and a stab the accelerator pedal, it chokes for a second then revs up but is very splutery and same coming down.. i can take off gentley and its all fine.. ALSO it backfired tonight on gas for the first time ever (seems to be running well otherwise)... the system is around a year old.. the plugs look ok but the leads are what came with the motor as mine did not fit... any idea what might be the problem\s? can they be related? I changed teh ISC (thing on top of throttle body with 2 allen key bolts) did not fix ( i had to rewire this when i swapped motors if that may be a deciding factor) |
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#2 | ||
Regular Member
Join Date: Jan 2010
Location: Warrnambool, Vic
Posts: 266
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Grab the coilpack and leads off your old motor if it was running fine before whatever happened to the old engine..
The only difference between the S1 coil pack and leads are the fitting on the coil pack and coil pack end of the leads.. So if you use your old coil and leads they should fit fine!
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#3 | ||
rexnet
Join Date: Feb 2010
Location: Adelaide, South Australia
Posts: 3,562
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is is possible the inlet manifold gasket is dodgey.
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#4 | |||
Regular Member
Join Date: Aug 2007
Posts: 108
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hey mate
it hasnt backfired since last nite and i drove it 50-60km to work today not much i know but its a start in terms of manifold gasket yeh it could be dodgy... thats a possability i noticed this morning when i first started it on petrol i gave it a few pumps of the pedal and it didnt stutter or hesitate it revd clean, but when its warm it does so.... could it be the coolant temp sensor? is that the one in the back of the head?? i have a spare most things off my old motor Quote:
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#5 | ||
FF.Com.Au Hardcore
Join Date: Jul 2011
Location: Serpentine W.A.
Posts: 1,639
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I would reset the ecu as it would be set to the old motor, may be getting diffrent signals from sensors in new motor.
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#6 | ||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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the following items are different on a S1 and will need to be changed
coil pack and the engine mount bracket it is on, inlet manifold as is has a different map sensor the sensor mounting is different so you can't just change sensors, engine wiring loom as it has the right plugs for the mapsensor and the coil pack. the ECU is disigned for the different coil pack and map sensor and you will have problems if you don't change them over
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Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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#7 | |||
Regular Member
Join Date: Aug 2007
Posts: 108
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thanks mate, so best if i just change the inlet manifold (put new gasket on anyways) and all the wiring thats attached, change coil packs (i can put my proper gas leads on anyways, so thatll work out good
thanks for that, im sure thatll solve the problem.. Quote:
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#8 | ||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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but remember the engine mount bracket is different too you have to change it to fit the correct coil pack
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[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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#9 | |||
Regular Member
Join Date: Aug 2007
Posts: 108
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yeh sweet as mate, i pulled the mount and everything off my old motor and will transplant on the weekend..
cheers for your help Quote:
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#10 | ||
Regular Member
Join Date: Aug 2007
Posts: 108
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UPDATE
so i changed over inlet manifold and wiring and the engine mount bracket everything works as it should now 10mm stubby rachet spanner saved the day in saving time on getting intake manifold bolts undone especially underneath where room is very limited ALSO i have pivot head rachet spanners which lock into position this made THE WORLD of difference when taking off and doing up engine bracket. i dont think i could have done this otherwise. http://www.craftsman.com/shc/s/p_101...3&blockType=L3 |
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#11 | ||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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good outcome , glad to hear it
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[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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#12 | ||
Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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glad to hear it's all good now
but just by the by, why did you swap motors?
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#13 | |||
Regular Member
Join Date: Aug 2007
Posts: 108
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au3xr6 a special thanks to you mate i appreciate your input
hey mate, swapped motors because the sump threads helicoil came out, so there were a few things which made me change motor.. a repair helicol for someone to come out was $120 I found a motor locally for $300 with 119km on it my old motor used oil and a fair bit and i was loosing water and could not locate the source so i thought maybe its going into motor I probably could have repaired the helicoil myself but i drive 1-1.5 hours a day to and from work to get home, so im very reliant on my car oh wouldnt hurt for me to break down my total costs $300 motor $80 (oil, filter, coolant, chain, d shackles (could find mine)) $50 Waterpump $12.50 Thermostat & Gasket $113 Radiator (found the cause of my leak, radiator was leaking from both side tanks) Total Cost $555.50 which considering everything i think its crazy cheap the new motor has been running daily for the last week, and hasnt used a drop of oil and has run flawlessly, cant complain Quote:
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