iv replaced a few parts recently and my car is still to unreliable to drive, just replaced a lamda sensor and it started but the rev counter didnt come on at all so i switched it back off and tried starting it again but it just cranks, its just come out of a garage and they told me i needed a new lamda

Is this the same garage that told you you needed a new crank sensor?

Exactly what setup are you running?

yeah it is lol i took it back and this is what theyve told me. im running the f7p fuel injected it was working up until today im getting lots of bubbles in the expantion tank but the garage said it didnt look like i had a thermostat so it was turbulence

What sensors are hooked up? Which ecu? What block/head/cams? Does it have the diagnostic port wired in?

all of the sensors are hooked up i think, its got a renault siemens ecu and standard 1.8 head and cams

it doesnt have a diagnostics port, im not really good with electrics so this might not be 100% accurate but this is what i think i can see

Ok, you don't need to be good at electronics if you can be methodical.

Can you upload photos? One around the inlet manilfold would be useful

Was this the engine that had a blown headgasket?

yeah but it should still start and the garage seem to think it doesnt have a blown headgasket and that its turbulence im not trusting them yet i need a second opionion on that

Not starting means either no/weak spark, no fuel, wring timing.

Check each of these and report back

how do i check the wiring timing?

I think it's meant to read WRONG, probably just a typo as I and O are right next to each other.