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| burnoutxr6 |
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Hi there,im after some info on whats causing my wife el wagon to rev to 2000rpm on start up and slow to come down even when driving in traffic you give it a bit and it takes ages to come back to idle its got me stumped.cheers
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| EL___Fairmont |
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I would start by cleaning the throttle body and ISC with carbi clean spray..
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| bry40l |
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Automatics have rev hang, mine does it worse than other falcons for some reason,
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| burnoutxr6 |
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Yea its a total pain in the butt,the wife naggs me everyday about it i will give the throttle body a good clean on the weekend and see if that helps.I even reset the ecu it seemed to be allright at first but then it came back.thanks for your help
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| Shortshift |
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Check the condition of your throttle cable. It might be frayed, kinked or not moving freely. Also remove the TPS (throttle position sensor) on the side of the throttle body and see if it works properly.
_________________ AU2 XR8 with Raptor VL, ported Yella Terra GT40P heads, Scorpion 1.6 RRs, XE264HR-14 Comp Cam, ceramic coated Hurricane Headers, 60lb injectors, Walbro 255, 200cfi cats, 3" exhaust & Snow Performance water methanol injection |
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| kickn_it |
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fixed a guys the other day, unplug the bloody ISC altogether and bump up the idle manually with the idle screw if the revs drop too low. Ive had to do it to mine too and my ISC is brand new. The ECU will control the revs on decel and i believe the ISC stays open when disconnected which should allow it to idle fine without having to adjust the idle screw.
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| Waggin |
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Can also be faulty ISC controller in the ECU. If a clean or replacement of the ISC doesnt help, then next thing would be swapping out the ECU.
_________________ WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build] |
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| kickn_it |
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I've tried 2 ECU's and still no difference. But i have done mods which the computer doesn't like.
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| bry40l |
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I unplugged my isc and now it wont start properly, once its running its ok tho
_________________ BF XR6 |
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| kickn_it |
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may need to bump up the idle screw to compensate for when its cold
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| burnoutxr6 |
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Cheers fella,s i give it a crack tommorow and see what happens.
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
Waggin wrote: Can also be faulty ISC controller in the ECU. If a clean or replacement of the ISC doesnt help, then next thing would be swapping out the ECU. the step before wasting money on an ECU would to fix the huge vacuum leak that is confusing the crap of the ECU. |
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| pissed'N'broke |
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Age: 38 Posts: 251 Joined: 9th Sep 2009 Ride: ED falcon gli - XR6 replica Location: Canberra |
is it only doing it when cold? cos most fuel injected cars bump up the idle when its cold until the ecu is confident enough that the engine car idle lower without stalling. if you disconnect the IAC and wind out the stop screw it may not want to idle on a very cold morning (like mine, doesnt bother me though). it might be worth resetting and relearning the IAC before you disconnect it, has worked for some (not me)
_________________ Ford ED Falcon Gli, T5 conv, Twinlight lights, exedy sports tuff clutch, modified EA front grill, ED XR6 complete interior, 19" speedy graphites, monroe gt shocks, kingspring superlows, CAI, ported tickford head, 3:45 LSD. |
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| The Dog |
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Vote 2 for vaccuum leak. Had same problem with the XH. Turned out I had inadvertantly fitted the rear intake manifold gasket upside down so the cutouts for the injectors were on the bottom. These created a vaccuum leak I could hear but couldn't track down. Tried everything else (as you have) then removed the manifold and found the problem.
_________________ You'll ride a black tornado across the western sky
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| bry40l |
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p****d'N'broke wrote: is it only doing it when cold? cos most fuel injected cars bump up the idle when its cold until the ecu is confident enough that the engine car idle lower without stalling. if you disconnect the IAC and wind out the stop screw it may not want to idle on a very cold morning (like mine, doesnt bother me though). it might be worth resetting and relearning the IAC before you disconnect it, has worked for some (not me) How do u reset or relearn the iac?
_________________ BF XR6 |
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