Cel light coming on o2 sensor ?

Post by **paul72** » Sun Oct 20, 2013 4:19 pm

I have been having problems since i replaced my last o2 sensor as wen i put my foot down cel light comes on plus i seem to be using more fuel then ever so i checked cel code today an it just gives one flash so i take it this is the lamba sensor who i brought of someone on here but was wondering if maybe it was the wrong one as mine is jdm and sensor did look a little different wen i fitted this so wud this be the answer plus has anyone got a jdm 4 th gen one i cud try as really getting fed up changing parts , i have replaced every part i can think of including plugs , leads , rotor arm , dizzy cap , fuel filter an getting no where

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun Oct 20, 2013 5:29 pm

The Oxygen sensor is a difficult thing to test unfortunately.

Have you read through the fault finding guide in the manual? There's a flow chart for code 1 and if you get to the end of that, it says to then do the tests for code 43.

Post by **paul72** » Sun Oct 20, 2013 5:44 pm

No i find it hard to get the manuals up on my phone have u got a link please

Post by **Merlin** » Mon Oct 21, 2013 4:39 pm

http://www.ludegeneration.co.uk/wiki/in ... ce_Manuals

Post by **paul72** » Mon Oct 21, 2013 9:16 pm

Right from a lot of reading it seems i been looking at wrong code as its one flash for couple seconds so i take it its code 10 which is iat sensor , is this right guys an wud this cause hestitating as its warming up for first few mins ?

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Oct 22, 2013 11:10 pm

Could do, if it's measuring the inlet air temp incorrectly then it will get the mixture wrong and that will probably have more effect when the engine is cold? The oxygen sensor shouldn't come in to play until the engine has warmed up sufficiently.

Post by **paul72** » Wed Oct 23, 2013 9:55 am

Yeah i let car warm up to normal temp then drove an car was fine so its air temp sensor which by the looks of it is honda only part plus its a pain to get out as its right next to abs pump with posi screws so mite have to take inlet mani out to get too

Post by **Merlin** » Wed Oct 23, 2013 10:06 am

@paul72 I have a spare IAT. The IAT is very easy to change as it is on the passenger side of the intake manifold. A 2 min job provided you can get the screws out (Edit - I dont have ABS

). You can have my one for £5 delivered if you like?

Get a vid of your CEL code if you are not 100% of what it is.

Post by **paul72** » Wed Oct 23, 2013 10:18 am

Cheers my screws are rusted plus there is only 3cm between abs pump so can get any tools in but im sure its that as its only wen its cold . Im waiting to see if bludge still has his on his scrap one today if not ill take u up on that thanks

Post by **paul72** » Sat Oct 26, 2013 4:14 pm

@merlin can i take u up on that sensor as we tried bludges car an cant get it off