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Old 10-23-2004, 19:11   #1 (permalink)
tup
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Join Date: Oct 2004
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help! idle problems 89 EA Fairmont

I've only just got this car. EA 89 Fairmont.. LPG/Petrol.
I've been starting it cold using petrol, then flicking it over to LPG once warmed up.. but it is idling like a dog! It's like it has a power surge.. idles right down to about 100 rpm then revs up to 1000 again.. then back down again etc...
Checked the petrol inlet etc and it is filthy, full of dust and crap .. and i don't think the last guy ever used the petrol! would the petrol be off? and does it sound like a carby blockage? if so, what's the best way to rectify this.. without having to pull the carby to bits???? it has about 3/4s of a tank of petrol... do i have to drain that all out? any thoughts would be fantastic! love the car.. but this is a real worry!
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Old 10-23-2004, 19:30   #2 (permalink)
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Re: help! idle problems 89 EA Fairmont

the petrol could well be off and the injectors are gummed up alittle
how does she run on petrol? is it only the idle that is ordinary?
Does it flare and hunt for idle when you start it on LPG?
LPG uses a differnt heat range plug so it is quite possible he has the timing set for LPG and using LPG range sparkplugs

EA are not a carby but CFI or MPI, but as you think you are looking at the carby yours is CFI.. So it is actually a fuel injected car
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Old 10-23-2004, 19:33   #3 (permalink)
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Re: help! idle problems 89 EA Fairmont

thanks for that.. i know absolutely nothing about these...
it is doggy idling on petrol or lpg, perfect when in drive.. seems to just be in neutral.
drives beautifully.

i just moved it out of the driveway a few mins ago, and it was on petrol... hesitated, blew black smoke, then decided to drive forward....
it seems to only have started since i'm starting it on petrol... as starting on lpg in the mornings was a bit of a process... turned over and over before firing etc...

thanks again... great to know it is fuel injected! **blush**
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Old 10-23-2004, 19:47   #4 (permalink)
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Re: help! idle problems 89 EA Fairmont

def a carby... just went and double checked... how can that be fuel injected? (sorry.. very old school knowledge here!) :)
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Old 10-23-2004, 19:51   #5 (permalink)
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Re: help! idle problems 89 EA Fairmont

sounds more like an idle issue, the CFI have a differnt idle control solenoid to what i am familair with, some of the E-series boys will have a trick or two to help you out

And welcome to the forums :)
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Old 10-23-2004, 19:52   #6 (permalink)
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Re: help! idle problems 89 EA Fairmont

it might look like a carby but it will have injectors instead of jets.. ill try and find you a picture


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Old 10-23-2004, 20:04   #7 (permalink)
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Re: help! idle problems 89 EA Fairmont

hey thanks :)
may have to take it to the lpg guy on tuesday.. bugger it...
nothing worse than getting a new car and it's already at the garage!! :(
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Old 10-27-2004, 23:53   #8 (permalink)
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Re: help! idle problems 89 EA Fairmont

found the problem! yaye!
the cap and rotor are STUFFED!! never seen any in such bad condition before! plugs all ok.. so looks to be a birthday all round for this car! thanks for the help! :)
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