Quick Question: IAC for CT and PRV V6

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addo
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Quick Question: IAC for CT and PRV V6

Unread post by addo »

Bosch number 0 280 140 530 - is it supposed to have a spring closure?

Mine is floppy, which from memory is at odds with the 405 unit that snapped (rotated) shut. Hoping someone can probe a spare one they have floating about, and report back.

Car idles reasonably, but stumbles slightly upon return to idle from revving; suspect it isn't reacting fast enough. I've also run TB cleaner through the system (Threebond, which I like) however yet to check the plugs and spark.

Thanks, Adam.
citroenxm
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Unread post by citroenxm »

Iac??? Whats one of those.... ?

Paul
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project

A very sad...
1994 XM 2.1 d auto
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Kowalski
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Unread post by Kowalski »

citroenxm wrote:Iac??? Whats one of those.... ?

Paul
"idle air control" ??
addo
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Unread post by addo »

Paul, désolé; valve de réglage du ralenti, alimentation d'air... :P

Mr Smith is right; it's the barrel with three pin grey plug and inlet plus outlet spigots across its top, that lies to the left of the throttle body and above it (when viewed from the radiator grille and looking towards your engine).

I've since dismantled, cleaned and reassembled it and there's no indications it ever had a spring unless it's a small clockspring that didn't drop any fragments when it broke.

Maybe it works on opposing currents? Three windings, resistances between approx 26, 28 and 47 ohms each.

The basic thing is, when you pedal it hard and back off, the idle drops to a near stall before normalising. Generally I'd put that as an air control issue.