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Old 23-12-2014, 01:41 PM
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SpecB SpecB is offline
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Join Date: Mar 2009
Location: Littlehampton
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Default MOT fail/misfire

Ok where do I start?

Car has a misfire under load, I can't drive it any distance due to no MOT or tax.

Fuel is around a year old engine was rebuilt and reinstalled with 15w 40 semi synth oil (as per builders instructions). New plugs fitted as well.

Emissions are through the roof! Always passed after second test with the sports Cat in place.

Fast idle CO = 0.505, HC = 417, Lamda = 0.965
Natural Idle CO = 1.593

What do I check first? Syvecs ECU with Wideband.
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
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