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 IMG_20171202_130205 by Graham Miller, on Flickr So... I've got the Multipla on the left, which is right at the edge of Retro Rides, being a Y plate. (Photo was taken when swapping the alloys off the modern one before selling it!) I'm finding that I need to update my knowledge - while I'm happy shimming up heads and checking points gaps, this car has a computer. Worse than that - an Italian computer! It went through a phase of not-starting that a mobile mechanic diagnosed as the crankshaft speed sensor. This was duly replaced and it now actually starts and drives. However, it's always thrown up P0130 codes - O2 sensor circuit problems and it's always had a tendency to stall. mostly at low speed. It's had a new exhaust manifold and lambda sensor as the old lambda sensor came out with the thread. What other sensors and witchcraft could be causing the low idle speed (around 800, can dip to 700) and frequent stalling? If it was a proper car, I'd just turn the idle speed screw up a bit and check the mixture! Oh, that reminds me, it has been serviced, coil pack, leads, plugs (which had good colour) etc. Where else should I be looking as it's a daily driver and I want to fix it before it dies on me! Thanks! Graham |
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Does it have a flowmeter? If so look at cleaning that, other obvious things are vac leaks etc
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I've got Torque Lite on my phone so next time I fire it up I'll check flow and load and vacuum etc.
Part of the trouble is that being late 90s and unloved there isn't much data out there on the internet.
Thanks!
Graham
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Hi Graham. I've got an ugly bug one too , but it's the JTD.As well as here I've found a wealth of knowledge and help over on the Fiat forum.
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mk2cossie
Club Retro Rides Member
Posts: 2,948 
Club RR Member Number: 77
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Multipla problemsmk2cossie
@mk2cossie
Club Retro Rides Member 77
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As you mention lambda sensors, I'm going to presume it's petrol powered  I'd start with taking off the throttle body and giving it a damn good clean out. Also, from my brief time at Fiat/Alfa, there was a phonic wheel relearn procedure to reinitialise the CPS |
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is it still throwing lambda circuit faults with the new lambda? if so then I would check the wiring back to the ecu.
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OOOOK.... yes, the spark plugs and lambda sensor it's a petrol, which seem to be rarer than the diesels.
I'll stick my head back in to the Fiat forum. I find the search facility on there really pants so I'll stick a new post up when I get to it.
I'll investigate the whole throttle body cleaning issue and get some gaskets. And the mobile mechanic did a phonic wheel reset - I really oughta google that and see what the hell it is!
And other faults have been temporarily fixed by undoing a connector, spraying with WD40, emery paper and reconnecting, so chasing wires back and cleaning connectors is a very good idea.
Thanks everyone!
Graham
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