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xf250 efi 

 

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 Post subject: xf250 efi
Posted: Mon Feb 01, 2010 3:22 pm 
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Age: 28

Posts: 16

Joined: 1st Feb 2010

Ride: toyota landcrusier

Location: ipswich
QLD, Australia

hey all i have recently put a 250 efi xflow motor and c4 into my landcrusier i have a few problems
1st is when i start it it revs up hard i have the idle screw right in i cant pick up any air leaks
2nd when i took it for a spin around the yard it idles like it has a big lumpy cam when in drive
3rd it is blowing black smoke like unburnt fuel smoke
any input would be awsome i just wanna get out in the bush again with my new motor
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 Post subject: Re: xf250 efi
Posted: Sun Feb 07, 2010 11:09 am 
Getting Side Ways
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Joined: 18th Dec 2008

Ride: BA Futura

Location: Hobart
TAS, Australia

Timing issue?

 

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 Post subject: Re: xf250 efi
Posted: Sun Feb 07, 2010 9:58 pm 
Getting Side Ways
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Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

Have you got the correct dip stick.....they had an orange rubber seal on the stick.
Is the airflow meter working properly???
Is the coolant temp sensor OK????

 

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 Post subject: Re: xf250 efi
Posted: Tue Feb 09, 2010 9:09 pm 
Fordmods Newbie
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Age: 28

Posts: 16

Joined: 1st Feb 2010

Ride: toyota landcrusier

Location: ipswich
QLD, Australia

i have a new temp sensor and the airflow metre seems to work ill check the dipstick
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 Post subject: Re: xf250 efi
Posted: Wed Feb 10, 2010 9:52 am 
Getting Side Ways
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Joined: 21st May 2005

Location: Melbourne
VIC, Australia

Also check the rocker cover gasket and the EGR valve for leaks.
ANY vacuum leak on the XF EFI system will make it run really really rich.

 

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 Post subject: Re: xf250 efi
Posted: Wed Feb 10, 2010 11:50 am 
Getting Side Ways
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Location: Brisbane
QLD, Australia

They use an ISC on the rocker cover - sounds like it has issues.

Throttle Position Sensor perhaps?- would explain the black smoke
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 Post subject: Re: xf250 efi
Posted: Sat Mar 13, 2010 9:27 pm 
Parts Gopher
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Joined: 6th Feb 2009

Ride: 2001 AUII XR6 ute

Location: In the shed
QLD, Australia

easiest fix? ditch the EFI and run a carby...... XF EFI is a PITA beyond belief.....
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 Post subject: Re: xf250 efi
Posted: Sat Mar 13, 2010 9:41 pm 
Getting Side Ways
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Age: 55

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Ride: 5.0lt NF /351 ZD Fairlane

Location: Wattle Grove
NSW, Australia

Had a similar problem with my zl efi coupla years back and knowing nothin about efi i asked a mate who said it was the fuel regulator which is on the firewall end of the fuel rail i bought a 2nd hand one (cheap as) fitted it up and sweeet problem solved! :D - apart from a cracked fuel rail, big hands no room no patience :wink: but give it a go mine just went no warning

 

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