Faulty lambda should not cause that I think, the correction is maximum 20% even so it would be trying to lean it at that point anyway, not richen it.
Will rack my brains later. However do the map reload anyway in the mean time. I'm erring towards ignition if not the ecu. M > On 7 Nov 2015, at 22:31, Bob Craig <bobbycrai...@tiscali.co.uk> wrote: > > Latest update. > Compressions are all equal at 115psi which I'm assuming is ok with the > decompression plate. When I took the new plugs out to do the test they were > very sooted up after running the engine whil watching the Megatune. Megatune > was showing AFR of around 10, so very rich. Could a faulty lambda cause > this. I've read how to test the lambda out of the car using a blow torch and > voltmeter but it seems the 5 wire wide band ones are harder to test - anyone > tried it ? > > It won't boost up to positive, just goes to 0 then backfires. Turbo issue > maybe? > > Bob > > -- > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to quantumowners@googlegroups.com > To unsubscribe from this group, send email to > quantumowners-unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As Is" > basis, without warranty or the implication thereof. Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or in > the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or alleged > to be caused directly or indirectly by the instructions contained within this > or related message(s). > --- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to quantumowners+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to quantumowners+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
