Sooty exhaust / Petrol smell returns.

h10ndr · Post by **h10ndr** » Mon Nov 16, 2015 4:39 pm

New o2 sensor i'm thinking...

Post by **Drax** » Mon Nov 16, 2015 4:44 pm

mine exhaust splatted out black sh*t every time if someone was behind it - quite often cars in car parks were a smidge dirtier afterwards

either that or my garage door gets the brunt

like a bloody oil slick

Post by **vanzep** » Mon Nov 16, 2015 10:33 pm

just a thought but you say Bosch spark plugs were fitted - that might be the issue

i would get some NGK Platinums fitted and see how it runs...

Post by **simonc** » Mon Nov 16, 2015 11:56 pm

Hi Nick. Really? Funny you say that as they were NGK plugs that were in before. I'll see if I can get some later in the week. Ta.

Post by **vanzep** » Tue Nov 17, 2015 9:03 am

Im sure there have been some reports of poor performance when using Bosch spark plugs - NGK is 1st choice and Denso 2nd. These are the only two suppliers that Honda recommend. NGK Platinums are PZFR6-11 but double check that.

Post by **simonc** » Tue Nov 17, 2015 9:20 am

Thanks fella.

(Edit) Just checked on the NGK site: PZFR6F-11. Thanks Nick.

Post by **vanzep** » Tue Nov 17, 2015 9:34 am

no worries fella - hope this sorts it out

chrismc · Post by **chrismc** » Tue Nov 17, 2015 1:11 pm

Yes H22's seem to run their best on simple OEM NGK plugs

Post by **Merlin** » Tue Nov 17, 2015 1:37 pm

If the new NGK plugs do not sort it there are other things to check such as ignition timing and all the sensors that allow the ECU to enrich fuelling, MAP, IAT, coolant temp etc....

Post by **simonc** » Wed Nov 18, 2015 12:05 am

Thanks guys for the info, much appreciated. Only bummer is that this week I'm really jammed with meetings and business blah, blah, blah therefore I do need the car. I've asked Jason to help me track down the plugs and the Lambda so hopefully, today or tomorrow, we should have them.
@Merlin you're spot on as Jason does want to give it a good going over and he did mention a couple of the things you've mentioned. Thanks.