Year of Manufacture *: 2002 Engine Code or Type *: Not known ( Optional ) ECU Type: Mems 3 ( Optional ) Scanner used: ACR4 G2
Evening all,
Asked to have a look at this vehicle which is suffering from a severe misfire with what sounds like back firing into the exhaust. Faults cannot be replicated by revving the car in neutral in the garage workshop. Fault Codes stored are 1539 and 0532 which relate to AC and cannot be cleared. Also PO 0445 Evap Purge valve which cleared down. Having studied archives tonight, I note that these appear to suffer from earthing problems between loom and coil connections. All other readings incuding emissions are normal. Tomorrow, if I get sufficient time for a revisit, intend to investigate along the lines of earthing/chafing problems......unless you know better!
Assuming coil packs and leads are ok, the other place to look is at the bracket at the right hand rear of the cylinder head where a multi plug is anchored, the feed for the coils is in here and sometimes wears through, the one I had was blowing up the coils.
Fixed #
Posted by Pete Mutlow on March 20, 2009, 8:15 pm, in reply to "Re: Rover MG ZR 1.8 - Misfire" Message modified by board administrator March 23, 2009, 12:26 pm
Evening All,
Jim, you were correct. Harness to the connector was chaffed and the connector itself was green with corrosion. Cleaned and made good and all is well. When I saw the vehicle yesterday, I could only spend about 20 mins on it and the same was applicable today. Dealer was desperate (money had changed hands) and wanted a fix urgently. Originally booked it in for Tuesday next week for a proper look so he was well pleased for the "bending over backwards" to which we are all accustomed. Thanks.
on March 20, 2009, 12:47 pm, in reply to "