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post #1 of (permalink) Old 09-16-2002, 02:32 PM
HAGGLUNDBV206
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1.3 won\'t idle up

my stock 1.3 is not idling up like it used to. when i start it cold it will want to die, when warm no problem. i have replaced many parts trying to fix this with nothing working. i have swapped fuel filter, air filter, egr valve, and more, i even swapped in 2 other carbs i had laying around, weird thing with that is the other carbs acted the same. when i turn on lights & stuff no idle up. next i was going to swap the ecm, and then what? it is starting to get colder so i am noticing this more. maybe the air tcac sensor? oh and i did check all the vacuum lines and tightend all the bolts on the intake. any advice?
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post #2 of (permalink) Old 09-16-2002, 02:53 PM
 
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Re: 1.3 won\'t idle up

Well I was going to point to the piece of the choke linkage that has a high idle cam and adjustment screw. But your swapping 2 other carbs made no diff you say. How does it run with the ECM disconected? It should be a tad rich, but does that change your idle?
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post #3 of (permalink) Old 09-16-2002, 10:53 PM
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Re: 1.3 won\'t idle up

have you checked your spark plugs?

sounds obvious..but speaking from recent experience...

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post #4 of (permalink) Old 09-17-2002, 03:01 AM
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Re: 1.3 won\'t idle up

well tonight I swapped in 2 other ecm's, no diff. I unplugged them and ran without one and it would not idle at all, ran ok but no idle. i have no idea what else to check
post #5 of (permalink) Old 09-17-2002, 03:03 AM
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Re: 1.3 won\'t idle up

the motor has new plugs,cap,rotor,air filter,fuel filter,egr valve and who knows what else. I was thinking to just go with the pony swap, but the problem doesn't seem to really be carb related, back to the think tank for me
post #6 of (permalink) Old 09-17-2002, 03:15 AM
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Re: 1.3 won\'t idle up

I had a 2-3 week old set of plugs in mine. I changed the cap, rotor, wires, coil, etc. Suddenly the rig ran like crap, too rich, no power, rough, etc.

The whole problem turned out to be that one of my brand new plugs had a cracked insulator. It only takes a second to check all four..could save you alot of work and headache

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post #7 of (permalink) Old 09-17-2002, 06:13 AM
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Re: 1.3 won\'t idle up

I would check the 2 ground wires at the thermostat housing for fraying or corrosion. Might even remove them, clean the ends up with some sandpaper and reinstall them. While you're at it, do the same for all of the ground wires attached to the firewall. This solves lots of electrical problems, large and small. HTH
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post #8 of (permalink) Old 09-17-2002, 02:44 PM
 
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Re: 1.3 won\'t idle up

If its not the plugs, (good sugestion) isnt there a water temp sensor that feeds the ECU? I can't remember, but if so it either will cause it to lean or go rich, dependant on if it is normally open or normally closed and which position it is stuck in. I can look at my FSM when I get home tonight.
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