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Reving to 2500rpm in neutral with out touching the pedal 

 

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 Post subject: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 3:55 pm 
Getting Side Ways
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Age: 29

Posts: 2563

Joined: 19th Feb 2007

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Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

Gday, i got this problem thats been going for a while. When i reverse into my drive way and go from D to N to R when i put it in neutral it revs up to 2500rpm without touchin the pedal, it will stay at that for about 10-15seconds then slowly go back down to about 900rpm then i can put it into reverse. Does anybody know what this could be???

Cheers

 

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EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 4:20 pm 
Smokin em up
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Age: 33

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Joined: 26th May 2008

Ride: EF XR6

Location: Brisbane
QLD, Australia

sounds like the idel stepper motor, or what ever it is called, on top of the throttle body. Try winding the idol screw back a 1/2 turn or so. Also take the sensor off and spray some brake clean into it to clean any build up out. It is normal that the revs do that in an auto. Hope this helps

 

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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 4:32 pm 
Getting Side Ways
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Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

xr6eat 50 wrote:
sounds like the idel stepper motor, or what ever it is called, on top of the throttle body. Try winding the idol screw back a 1/2 turn or so. Also take the sensor off and spray some brake clean into it to clean any build up out. It is normal that the revs do that in an auto. Hope this helps


Cheers i have the screw completly backed off not doin anythin, because i have a 68mm its letting in alot more air at idle. Its idling at 900-950 and thats the lowest it will go. I did d/c the stepper motor and it still did the same thing in neutral but in the mornings its an absolute dog to start when that is d/c, so i connected it back up.

 

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EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 4:35 pm 
Stock as a Rock
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Age: 26

Posts: 184

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QLD, Australia

hey can anyone give explantion on where the sensor bit is

 

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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 4:36 pm 
Stock as a Rock
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Age: 26

Posts: 184

Joined: 19th Jan 2009

Gallery: 1 images

Ride: ef futura

Location: townsville
QLD, Australia

hey can anyone give explantion on where the sensor bit is

 

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ef futura in the process of doin her up nice and neat it will be

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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 5:14 pm 
Getting Side Ways
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gezza i think the problem lies with both the bigger throttle body you fitted, and the lack of tune with the bigger cam youve put in.

sounds like the car might need a tune.......

have you checked that the TPS is at the correct voltage with the new TB
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 Post subject: Re: Reving to 2500rpm in neutral with out touching the pedal
Posted: Mon Mar 23, 2009 7:16 pm 
Getting Side Ways
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Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

FordFairmont wrote:
gezza i think the problem lies with both the bigger throttle body you fitted, and the lack of tune with the bigger cam youve put in.

sounds like the car might need a tune.......

have you checked that the TPS is at the correct voltage with the new TB


Yea im hopin it just needs a tune, im booked in this friday to get the chip i bought proply dyno tuned an fixed up hopefuly it fixes the problems

Cheers

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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