Recent content by BTank88

It's probably the secondary air injection pump.

Thanks for posting those, but unfortunately they won't help. I'm trying to locate a possible short circuit in the ECU harness, somewhere between the ECU and the secondary air switchover valves for the secondary air injection system. There's a couple of bits of info that would help me: -...

Anywhere I can find the above? I don't mind paying one of those websites if I need to do but I just need to know if I can get hold of this anywhere.

Took out the air filter housings and black intake today so I could visually inspect the harnesses between ECU and the valves, and I really couldn't find anything odd. Everything seemed in perfect shape. Thinking I need to give it to an indy next and leave it with them to sort out. I did take it...

I have only checked around the valve locations and around the ECU location, I haven't checked the actual routing of the wires. That go around the engine block and towards the ECU. A few things will have to be removed for me to get a good look at this like the air filter housings etc. I will do...

If I remove secondary air valve 1, I get codes for both valves 1 and 2 (electrical fault). If I remove only secondary air valve 2, I get no codes for electrical fault. Both connectors for valve 1 and 2 are giving 8-12v Does sound like a short somewhere between the 2 valves.

£33 is like normal price for them, everywhere else has them for around that price. Completely meaningless sales at ECP.

Ok.. I think I'm pretty much out of ideas now. I got the multimeter out today to measure and monitor voltages. I measured in both switchover valve harnesses. Consistent behaviour in both, ~8.4v at ignition on on each side, and goes to 0v a minute or two at ignition off. I didn't bother...

Not sure there would be any benefit there if it's already fitted with factory PP LSD? I guess you wouldn't have to have it serviced like the factory one but not sure about performance differences.

If you aren't after the 'collectible' aspect, I'd consider a base C63 and remapping it and getting Wavetrac/Quaife LSD fitted. Another thing to consider would be secondary cat removal for a bit of extra volume but obviously that's personal taste. Mine has all of the above, I won't be doing...

Did a little more digging today. Only a small portion of the harness is visible, as it goes under the intakes and then around the back of the engine somewhere and I think it comes out the engine ECU area. I traced the harness as much as I could and honestly couldn't find anything odd anywhere...

Decided to test the pump first before blindly removing and replacing it. I shorted the relay connections first in the fuse box, and the pump turned on. Surely this would rule out a pump issue. Relay itself is new, so the system must be capable of getting power. Fuses will be OK too. I then...

That hasn't worked, I may have to look at the pump next. I am conflicted though why the code is talking about the secondary air valve and not the pump which I'm sure has its own code. Is there a fuse related to the valves themselves? I have checked the fuse for the whole system which is 40a...

Replaced the secondary air valve 1, switch over valve, whatever you want to call it today. After replacement, the DTC still returned on a cold start. After having a further snoop around the engine bay.. there's another valve that was hidden under the cover. So I replaced this one with the old...

Tried some more starts, I saw DTC's being stored but without EML being on. It's possible the EML is only lit after a certain amount of DTC's are stored maybe. Anyway, I want to be as sure as possible before I start replacing things. I really can't hear the pump running to be honest and it's...