problems with the idale

[Diverz_Fxgt]

hi guys. i have 1988 ae92 fxgt. i have problems with my idale droping down to less than 500 rvers every know and then and if i dont keep reverin 2 keep the idale @ 1000 the car switchs off. i have tryd turing it up but i still giving me the same problem. plus my battery power goes down at the same time. any help will be most helpfull. thanks

[20v_rollaboy]

Does it go straight down or bounce up and down and then die? Have you checked for water leaks?

And what do ya mean by the battery power goes down at the same time?

[MrOizo]

could be something like alternator not supplying enough power to the fuel pump or something?

are you jump starting it initially?

[mr pad]

sounds like it could be the alternator. Is your battery going flat? having trouble starting?

idle. idle.. IDLE.

[Diverz_Fxgt]

Does it go straight down or bounce up and down and then die? Have you checked for water leaks?

And what do ya mean by the battery power goes down at the same time?

ya it bounces up and down. dont have any water leaks had my cooling system and the head gasket changed about 6 months ago. for the battery it lose power. i have a factory voltmeter on the dash. the needle on the voltmeter points just below the 18v.

[20v_rollaboy]

Charging should only be about 14v shouldnt it?

[Diverz_Fxgt]

could be something like alternator not supplying enough power to the fuel pump or something?

are you jump starting it initially?

i dnt jump start it but my start motor is playin up so im goin 2 change it. how do u check if u have problems with the fuel pump.

thanks guys for all ur help.

[solberg Fan]

If you mean the voltmeter reads low at 500rpm, thats prety normal. They need a few revs before they start to work. It should read between 13.5 - 14.5V at about 2000 rpm.
Im not sure what engine you have but i have the same prooblem with my bmw at idle. I know (in my case) its the idle control valve at fault but they want an arm and a leg for a new one.
Maybe give your throttle body a clean out.

[NooDleS]

Ok, a few other things you might want to give a try looking at...

1). IACV (Idle solenoid)
2). Fuel pump filter
3). A Dodgy earth
4). Faulty thermostat
5). Spray some carb cleaner into the TB

In my old Fiat Bravo, believe it or not, i spent hundreds trying to fix this and it ended up being faulty wiring for the immobiliser.

Hope this helps

[Diverz_Fxgt]

thanks guys 4 ur help.

[NooDleS]

have you got it sorted?

[Diverz_Fxgt]

have you got it sorted?

na not yet being very buzy with my studyz got exams cmin up. i will try all ur methods in the weekend. thanks for ur help.

[deaf_rattle]

let me know how you get on, my fxgt is doin the same thing.
im lazy so it will probably just keep doin that for ages

im going to look at the intake piping and try bleeding the coolant system again. failing that some more earths