irratic idle help!!!

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chapelcotts

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hi, freelander 1800 petrol injection 1998. the idle generally ranges between 1100 1300rpm. but at junctions etc.once stopped regulary at 2500rpm, a quick blib of the throttle will bring it down again but will still be irratic and sometimes climbs rapidly again forcing me to blip it again.also suffered total power loss on the run, will idle but when depressed throttle revs drop.turn engine off and after 2-3 mins will run again. changed plugs,leads,dissi cap+rota arm.what next?thanks y-disco for pointers.
 
chapelcotts said:
hi, freelander 1800 petrol injection 1998. the idle generally ranges between 1100 1300rpm. but at junctions etc.once stopped regulary at 2500rpm, a quick blib of the throttle will bring it down again but will still be irratic and sometimes climbs rapidly again forcing me to blip it again.also suffered total power loss on the run, will idle but when depressed throttle revs drop.turn engine off and after 2-3 mins will run again. changed plugs,leads,dissi cap+rota arm.what next?thanks y-disco for pointers.
Click to expand...
AIR LEAK ON INLET MANIFOLD ,ME THINKS. . .:)
 
chapelcotts said:
hi, freelander 1800 petrol injection 1998. the idle generally ranges between 1100 1300rpm. but at junctions etc.once stopped regulary at 2500rpm, a quick blib of the throttle will bring it down again but will still be irratic and sometimes climbs rapidly again forcing me to blip it again.also suffered total power loss on the run, will idle but when depressed throttle revs drop.turn engine off and after 2-3 mins will run again. changed plugs,leads,dissi cap+rota arm.what next?thanks y-disco for pointers.
Click to expand...

Erm welcome chapelcotts!

usually at this point ,i would refer to my trust rave Cd,(kindly supplied by a fello member of this forum) and try to assist you in you quest,BUT my darling teenage daughter has a nasty habbit of not returning Cd's to there correct cases, Hence i picked up what i thought was a music cd i copied for a trip to Scotland, only to find it made lots of squeeky, blippy noises when inserted to the cd changer, hence! in a fit of ****ed offness the offending cd was ejected from the hippo mid journey,
grrrrh!:mad: So! Dunno mate, but ming wont be far wrong!
 
mondo said:
Erm welcome chapelcotts!

usually at this point ,i would refer to my trust rave Cd,(kindly supplied by a fello member of this forum) and try to assist you in you quest,BUT my darling teenage daughter has a nasty habbit of not returning Cd's to there correct cases, Hence i picked up what i thought was a music cd i copied for a trip to Scotland, only to find it made lots of squeeky, blippy noises when inserted to the cd changer, hence! in a fit of ****ed offness the offending cd was ejected from the hippo mid journey,
grrrrh!:mad: So! Dunno mate, but ming wont be far wrong!
Click to expand...
Get back in the trenches mond , there's a war on. . .:eek:
 
MORE HELP REQ. eliminated inlet manifold,air hoses for splits+blockages,has aluminium throttle body housing +cleaned inside,keep suggestions coming.map is integral to ecu.
 
replace the throttle body, sometimes they stick but also the TPI gives the wrong reading to the ecu and the stepper motor for idle control wont do it job properly hence fast erratic idle
 
clutchdust said:
replace the throttle body, sometimes they stick but also the TPI gives the wrong reading to the ecu and the stepper motor for idle control wont do it job properly hence fast erratic idle
Click to expand...

Ouch! - another £200 bill?:eek:
 
I got an irratic idle now:mad:
Think its because I took the hippo into too deep a puddle:eek:

The puddle in question came a third of the way up the doors, and guess what?

They didnt fall off:p :D
Dont know if any of this is of use/relevant chapelcotts but..........

Think I musta got some ****e in the electrics, Engine management light flashing a while, staying on for a bit, flashing again, staying on for a bit more..... etc etc.... blah blah blah:(
Also running like its misfiring, shaking about like the missus' vibrator :eek:

Gonna strip the injectors tomorrow and look at the electric plug thingy on the under side. Looked a bit gunked up with sand and silt today:eek:
Is there a timing sensor anywhere that could be clogged? Any other ideas please in case I'm way off the mark?:rolleyes:
 
clutchdust. looks like t.p.i. on diagnostic.Awaiting component.could be back back on rod tomorrow.will post outcome.ta.ta.
 
pompey-john said:
In case you come back to ava look chapel.

I just pulled me plugs out and they were very loose. No4 was water logged with sand silt in from wading:eek:
Cleaned em up, gapped and refitted. Running sweet as:D
Click to expand...
Nice one Poppy. . . .:) :) :)
 
clutchdust said:
replace the throttle body, sometimes they stick but also the TPI gives the wrong reading to the ecu and the stepper motor for idle control wont do it job properly hence fast erratic idle
Click to expand...

yuz - and where it say wot the tpi is?:confused:
 
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