Dead Lambda sensor? - Retro-Renault

Laine_16v · 10th February 2007, 06:10 PM

Ok,

Went to Hillpower today to have the valver Dyno'd, only to find out when the plugged it all in the lamdba is dead.

Few questions, nick hill said it wouldnt matter for the RR as when throttle was wide open it just ignores lambda.

Will i suffer poorer fuel econemy because of this duff sensor? Wheres the best place to get a new one? i hear people seem to buy wrong ones all the time, wrong type e.t.c

Easy to refit?

Any advice is greatly appreciated, ta.

sparky33 · 10th February 2007, 06:14 PM

it will mainly effect your idle, and you will fail your MOT, the lambda sensor maintains the stoichiometric level (not used that word since I was in college..lol..), it may cause the car to run a little rich at low revs, so it will effect your fuel economy.

It's usually an easy job to do, it just bolts into the downpipe on the engine side of the cat.

Peter T · 10th February 2007, 09:10 PM

Easy once you've De-skined your kunckles, and swore and hammered the darm old one un-done.

**Neal** · 10th February 2007, 11:01 PM

give it a dose of the blowtorch, then test it again.

Laine_16v · 13th February 2007, 10:31 AM

Hopefully getting it done at the weekend.

Do dead lambda sensors cause poor fuel econemy, or only while the engine is cold?

R1916S · 13th February 2007, 08:24 PM

I got one from this lot.

Just Lambda, Suppliers of zirconia and titania lambda sensors by post

Fitted an NTK and Im very happy with it.

**Chris H** · 13th February 2007, 11:50 PM

dead/slow responding lambdas cause faulty idle, surging and huntign at idel.

The lambdas ignored during cold start enrichment and full throttle

Laine_16v · 17th February 2007, 03:00 PM

May that lambda sensor rust in hell.

Had to remove the downpipe and grind the fooker off, it wasnt budging at all and was rounding nice and easy

Had to drill it out and weld a nut on to give the sensor a thread. Bloody renaults

Many many thanks to Stan for carrying out the work, highly reccomended!

stan · 17th February 2007, 04:30 PM

Fucking right it wasnt budging...no ammount of heat, swearing, or blood turned it further that the first turn. Bastard thing!

**bidderman1969** · 17th February 2007, 06:44 PM

wimps, lol

R1916S · 18th February 2007, 02:04 PM

This explains a bit about the closed - open loop bit.
Fastchip.nl

OK go to technical info - 16V engines - closed loop

**Chris H** · 18th February 2007, 02:17 PM

so does the articles I done on it

Luke1916v · 19th February 2007, 09:47 PM

What I find helps is if you take your car for a blast before the mot! Gets everything working as it should. And normally gets rid of any cold start smoke too.

stan · 19th February 2007, 10:28 PM

not if the lambda is fucked it doesnt

Luke1916v · 25th February 2007, 10:34 PM

Quote:

Originally Posted by stan

not if the lambda is fucked it doesnt

yeah well! Haha. don't mince you words will you.

**Neal** · 25th February 2007, 10:53 PM

concise technical information here!

10th February 2007, 06:14 PM	#2 (permalink)
sparky33 Membre aÃ®nÃ© Join Date: Feb 2007 Location: Edinburgh Posts: 1,564	it will mainly effect your idle, and you will fail your MOT, the lambda sensor maintains the stoichiometric level (not used that word since I was in college..lol..), it may cause the car to run a little rich at low revs, so it will effect your fuel economy. It's usually an easy job to do, it just bolts into the downpipe on the engine side of the cat.