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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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740 poor running and stallingViews : 21763 Replies : 119Users Viewing This Thread : |
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#27 | |
Premier Member
Last Online: Today 09:30
Join Date: May 2012
Location: Lakenheath
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![]() Quote:
Hopefully it's something fairly simple from here, most likely is it started misfiring before it was laid up and has got worse since. They probably tweaked the mixture screw to get it through MoTs before that so it's running as rich as anything now. On my 760, i had similar (although that's LH-Jetronic) because my injectors were dirty. When i replaced them with some Vauxhall Omega V6 injectors (cross-referenced to the Bosch replacements for the OE injectors, then found the GM V6 used the same injectors!), the performance was vastly improved, however the idle CO shot up from ~1% to about 9%! ![]() I tweaked the mixture screw on the MAF to get it back to where it should be and still had improved performance, response and economy, hence my suspicion about what's happened with yours.
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag ![]() |
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Tags |
740, 940, b200e, stalling, throttle lag |
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