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Could you not replace the pre cat lambda with a wideband and modify the ECU to accept the new signal in place of its original, or is this outside the scope of an OEM ECU?
Why don't manufactures fit wideband to aid more control over the engine from the factory?
If the pre cat lambda controls AFR ( I assume ) what's the purpose of the post cat lambda?
But the beauty of the RSTuner is that I have 2 megane and a clio and all three can be mapped for nearly half the price of getting every one custom mapped, and it has useful features such as data logging and fault code reading.
RS Tuning is a 6 hour round trip for me as well although in an ideal...
Is there any type of t-piece for exhaust sensor so it can run the wideband for data logging and the narrowband OEM or do they need to be in direct flow of the EG?
Don't really fancy drilling and welding my new exhaust system.
Found this online which apparently corresponds to a narrowband reading on a meg 225:
A/F ---- V
16:1 --- .76
15:1 --- .80
14.7:1 - .81
14:1 --- .84
13:1 --- .89
12.5:1 - .91
12:1 --- .93
11:1 --- .98
Hi all, I don't usually delve into engine management so this may be a stupid question, feel free to correct me in any way you see fit. Hopefully some of the more clued up members may be of assistance.
Basically I'm going for a remote fastchip remap on my meg 265 but the generic map is for...
Yes I have, whilst on a euro trip last year I had a rather violent bottom out on a dangerously large kerb in Amsterdam and presumed I'd damaged the decat however removed it for full inspection and was fine.
This is the correct gasket for the Ph1?
I've changed the mani to cat ring and the old one didn't show any signs of blow by. Didn't seem to change the fault either. I have aqquired a mani gasket from Renault, anyone know if I disconnect the cat if the manifold can be pulled back far enough to swap gaskets over with the manifold in...
I've had a quiet but very annoying exhaust blow on the 172 now for about a year and can't seem to source it's origin. With the window open it's definitely located nearer the engine, I've changed the mesh ring with a new genuine fitting kit and other end of the decat has a new gasket too. Lambda...
May be irrelevant but my 225 is having the same problem. Just stopped working for no reason. Does your speed limiter still work? That'd indicate if the steering wheel buttons work.
Flatspots are common with a zorst and a nightmare with a decat but it's very obvious it's a flatspot at fault as opposed to sluggish acceleration.
They do take time to get going, very heavy compared to a mk2, make up for it in the bends!