Problems with idle-speed

Hello!

I am running a 106 with a 1.1l engine. Since I diconnected the battery the idle-speed went up to 2000 rpm (or so: difficult to say without a rpm-o-meter ;)

I exchanged the motor-management-controller without success: Same malfunction. I read in a Repair-handbook, that the idle-speed can't be adjusted like in "good old times" ... but there was a Proceedure like the following:

If you have a Marelli-Controller: Start the ignition, not the motor - wait for 10 sec. and start the Motor: idle-speed is readjusted - good.

I have a Bosch-Controller: The Handbook tells something like: "Let the Motor run with higher RPMs and wait until the Fan switched on twice. Switch of the Motor. Switch of all electric devices. Start the ignition, stop the ignition (without starting the motor!) Start the motor and let it run 30 secs. (Don't push throttle!) Drive 10 (in words: ten) Minutes in upper rpms (between 2500 and 3500) Stop the vehicle and run 1 Minute in idle-speed. (Don't push the throttle!) Switch of the motor: Idle-Speed is readjusted."

Does anyone have a better Idea how to readjust the idle-speed?

A car specialist told me, that it might be neccessary to replace the throttle-potentiometer, that messures the degree of the given throttle (Exchange costs about 300?) This might solve the Problem, but before the battery-power-loss everything worked fine! No Potentiometer will fail after a Batterypower loss ...

Sincerely

Freddy

Reply to
Peugeot Freddy
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these are normally pretty good concerning idle speed, however an air leak will cause high idle speed considerably...check all the vacuum pipes coming off the inlet manifold for splits etc.. there may also be an air leak in the inlet manifold gasket where it is bolted to the cylinder head....its unlikely to be the throttle pot,

Reply to
steve

Hello ...

What about the calibration of the Throttle-Poti? My Computer-Joystick has to be calibrated as well ...

I read in an Motor-Diagnostic-Controller-Handbook that there is a Menupoint on it ... but it wasn't for a Bosch-Motor-Controller. Perhaps I should borow such a device to check the Error-Memory.

Thanks for your reply.

Sincerely Freddy

"steve" schrieb im Newsbeitrag news:2Cenb.2274$ snipped-for-privacy@newsfep4-glfd.server.ntli.net...

Reply to
Peugeot Freddy

maybe it's a stupid suggestion but have you tried disconnecting the battery again? Maybe the ECU has got itself upset.

Reply to
SimonDS

I've heard that when you do this, you must touch the (diconnected) leads together to reset the ECU. I understood that it discharges all the diodes. If this wrong, then I'd like an expert opinion.

Reply to
r

Diodes don't hold any charge, they control direction of current flow.

Capacitors hold charge, but you should never discharge a capacitor through a dead short as you may damage it.

Reply to
miknik

leave the battery disconnected about 3 hrs to reset ECU so i was told

Simon

Reply to
SimonDS

Hello ... thank you for your comments, Actually I disconnected the battery ... but only for a few seconds. I'll disconnect the battery for this night and see what happens. Tomorrow is the appointment with the engineer/expert. They'll have to fix it if neccessary. :)

Actually I tried another ECU and the first seconds were possitive. But after a while the idle-speed ran up again. That one was unplugged for several days.

Possibly there is a problem with one temperature-sensor: The idle-speed of a warm motor is steadily rising and falling. But there might be as well a leak in an air tube.

I hope that my car is going to be fixed tomorrow ...

Bye Freddy

----- Original Message ----- From: "SimonDS" Newsgroups: alt.autos.peugeot Sent: Tuesday, November 04, 2003 7:02 PM Subject: Re: Problems with idle-speed

Reply to
Peugeot Freddy

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