Re: Getting closer on no-start but still stumped
From: pugNZ (pug-yahoo2@azorah.co.nz)
Date: Mon 02 Jun 2008 - 19:53:35 EDT
I have checked the XN6 manual.
It says you should have magnetic impulse generator in the distributor which
sends pulses to the amplifier module which controls the coil.
coil and amplifier should be mounted in an alloy case to provide grounding
and cooling.
Impluse generator should look like a star wheel inside the distributor.
You can check the system as follows.
-remove distributor cap
- turn the engine by hand so that the arms of the star shaped polarity wheel
in the distributor are placed on either side of the pickup (black
rectangular box just below star).
-remove HT lead from distributor cap, hold with pliers close to a good
ground
- turn the igntion on
- to generate an impulse, use a screwdriver to mimic the star wheel passing
over the pickup and this should generate a spark.
If no spark, check:
Impulse pickup
- turn ignition off
-disconnect connector plugged into the side of the ignition module from the
distributor.
- check resistance across the two pins on the connector (ie through pickup
in distributor)
- resistance should be 900 to 1100 ohms.
- If higher resistance, check for corrosion on contacts or bad connections.
- if no contact issues, replace pickup
check pickup coil insulation
- test resistance between ground and each pin
- should be infinity
Coil and amplifier:
- ignition on
-connect test lamp between coil + and ground, should light up (if not, check
supply to coil)
- connect test lamp between coil - and ground, should light up (if not
possible coil fault or amplifier fault)
Coil:
- check primary circuit resistance, coil + to coil - should be 0.48 to 0.61
ohms
- check secondary circuit resistance, coil + to HT output, should be 9000 to
11000 ohms
Amplifier:
-unplug the wire from the distributor to the amplifier - note terminal G is
the lower pin for this plug, ie the one closest to the body of the car when
the coil/amp is mounted in the car correctly.
-unplug coil HT lead, hold in pliers near ground
- turn ignition on.
-use wire to intermittently give battery + power to terminal G, should
generate spark each time.
if you got a spark in the first test with the screwdriver you could check
the gap between the star wheel and the pickup - adjust to 0.3mm to 0.5mm
(0.012" to 0.020") using a non-magnetic feeler gauge.
Note, the amplifier is mounted with a heat transfer grease, make sure this
is used if you remove the amplifier.
Have fun.....
On 6/2/08, zumkopf <martin.karo@verizon.net> wrote:
>
> Summary: '84 XN6, problem at first was that car would quit after
> about 20 minutes running and wouldn't restart; then it wouldn't start
> at all. Per the suggestion of several people on the board (special
> thanks to Lance), I was able to check the coil. It makes a spark
> under test conditions (direct power to coil, new spark plug wired
> with new ignition wire to high tension lead), so the coil itself
> seems to be good. The positive lead supplies 12.5 volts with
> ignition switch at "run"; the negative lead supplies 3.3 volts, so it
> seems to be getting power from the ignition system. However, with
> normal wiring restored, the coil does NOT make a spark under cranking
> [tested with plug wired to high tension lead].
>
> I gather from this that the coil is capable of making a spark and has
> the power supply to do it, but it isn't being TOLD to make a spark,
> so to speak. So what do I look at next? The distributor pickup?
> How does one test that? What else might it be?
>
> I appreciate any help. This one is new for me.
>
> Marty
> '85 505 STI TD
> '84 505 STI XN6
>
>
>
>
> ------------------------------------
>
> Recommended format for your email subject lines:
> Model # [Model Letters] Year Subject
>
> Examples:
> 505 88 V6 Mileage
> 405 Mi16 89 Ignition Coil source?
>
> ************************************************
> To unsubscribe from this list send a blank email message to
> PEUGEOT-L-UNSUBSCRIBE@YAHOOGROUPS.COM
> ************************************************
> Yahoo! Groups Links
>
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
Recommended format for your email subject lines:
Model # [Model Letters] Year Subject
Examples:
505 88 V6 Mileage
405 Mi16 89 Ignition Coil source?
************************************************
To unsubscribe from this list send a blank email message to PEUGEOT-L-UNSUBSCRIBE@YAHOOGROUPS.COM
************************************************
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/peugeot-L/
<*> Your email settings:
This archive was generated by hypermail 2.1.4 : Mon 02 Jun 2008 - 19:08:35 EDT