Mpg

Well i managed to get 200 miles to 33 litres of petrol. Giving me a figure of 27.5 mpg.

That o2 sensor i bought has already paid for itself as it used to be about half that !

I have a tt 6 spd. I am mainly town driving with the odd dual carriageway and about 10 miles of that was motorway.

I thought it was quite a reasonable figure.

"Driving Miss Daisy" sorry couldn't resist:innocent:

you sure it running on all cylinders, oops sorry:innocent:

eer well done:d

I've been getting a lot more MPG since the introduction of V-Power. I always fill up to the click and I'm getting enough fuel left at the end of the week to do what we used to bung £20 worth in for.

Good to hear it has made a noticeable difference Col

Anyone who hasn't changed their O2 sensor for a few years should defintely do so, it makes a big difference to fuel economy and smoothness of the engine at lower rpms. As said a new O2 sesnor will pay for itself in fuel savings in a short time.

If there is any interest I can organise another O2 sensor group buy.

ps. 9000th post

Post Pimp

how much are they nic cuz i would be interested ....... just found the last group buy thing i would be interested

The group buy price would be £79 each including postage, normal price £88 including postage (they are over £100 each from UK T-dealer I believe).

The NA Supra unfortunately needs 2 oxygen sensors (the TT only needs one), one in each of the 2 manifolds.

It may seem expensive, but as Col said they should pay for themselves in fuel saving over time. They are also one of the main sensors the ECU uses to determine the fueling, so will help the engine run smoother.

This pic shows the stock NA manifolds and 2 bosses where the oxygen sensors fit.

http://img226.imageshack.us/img226/8559/11outin5.jpg

Good to hear it has made a noticeable difference Col

 

Anyone who hasn't changed their O2 sensor for a few years should defintely do so, it makes a big difference to fuel economy and smoothness of the engine at lower rpms. As said a new O2 sesnor will pay for itself in fuel savings in a short time.

 

If there is any interest I can organise another O2 sensor group buy.

 

ps. 9000th post

I cannot stress how much of a money saving tip this is!

so when do we get ours nic?

my fuel consumption is piss poor, however on my mot my lamba reading was 1.1.

and it can be 0.97- 1.3

have you recieved yours from nic?

so when do we get ours nic?

 

my fuel consumption is piss poor, however on my mot my lamba reading was 1.1.

 

and it can be 0.97- 1.3

 

have you recieved yours from nic?

First 3 posted today, yours should be here next week

I'm hoping I'll see a dramatic rise in fuel economy too, I'm lucky to get 200 miles to a tank these days!

Sounds pretty interesting. To be honest you use a few hundred quid of petrol in no time on the supe. I bet it would be a v good investment. Ill keep an eye out for a group buy.

Nic,

Quick question, do all supras use this sensor ? also apart from low mpg how can you tell if you need to replace it or should all supras with mileage over say 70,000 need to be replace ?

FYI

I have a (decatted) 1994 Jap manual TT

thanks

Part numbers for O2 sensors...

UK

89465-19595 (RR)

89465-19605 (FR)

Jap

89465-19635

VVTI

89465-19725

I don't know what they are for the NA. I also don't know if all the sensors are essentially just all the same except different bracket/connector.

I believe I read they should be replaced every 3 years... I've had my car longer than that and never changed it so god knows when/if it has ever been done.

Well i managed to get 200 miles to 33 litres of petrol. Giving me a figure of 27.5 mpg.

What did you get before?

What did you get before?

it used to be about half that !

13.75mpg.

Glad to be of service

Mine hasn't been changed for a while, don't know if i'd see a big differance in mpg, but i'd be interested in a group buy.

First 3 posted today, yours should be here next week

i was first on the list, and payed when you asked

oh the cheek;)

Nic,

 

Quick question, do all supras use this sensor ? also apart from low mpg how can you tell if you need to replace it or should all supras with mileage over say 70,000 need to be replace ?

 

FYI

I have a (decatted) 1994 Jap manual TT

 

thanks

Yes all MKIV Supras have either one or two O2 sensors. Your NA is fitted with two O2 sensors.

If your car has done 70K on the original sensors then I would say definitely time to fit new ones, you should see improvement in mpg and generally smoother engine running.

Have a read of these articles, the first one explains what an O2 sensor does, the second explains how you can test an O2 sensor

http://auto.howstuffworks.com/question257.htm

http://auto.howstuffworks.com/framed.htm?parent=question257.htm&url=http://www.forparts.com/o-21.htm

I got a TT, done 53K miles but it is 13 years old... should I get a new O2 sensor? I do over 1,000 miles a month.

Yes all MKIV Supras have either one or two O2 sensors. Your NA is fitted with two O2 sensors.

 

If your car has done 70K on the original sensors then I would say definitely time to fit new ones, you should see improvement in mpg and generally smoother engine running.

 

Have a read of these articles, the first one explains what an O2 sensor does, the second explains how you can test an O2 sensor

 

http://auto.howstuffworks.com/question257.htm

http://auto.howstuffworks.com/framed.htm?parent=question257.htm&url=http://www.forparts.com/o-21.htm

cheers Nic

Can joe public fit/change these sensors or would a mechanic who knows what to do need to do it ?

also you got a link to the group buy please

ta

Good to hear it has made a noticeable difference Col

 

Anyone who hasn't changed their O2 sensor for a few years should defintely do so, it makes a big difference to fuel economy and smoothness of the engine at lower rpms. As said a new O2 sesnor will pay for itself in fuel savings in a short time.

 

If there is any interest I can organise another O2 sensor group buy.

 

ps. 9000th post

does this apply to n/a,s as well????

I got a TT, done 53K miles but it is 13 years old... should I get a new O2 sensor? I do over 1,000 miles a month.

If car is still using the orignal O2 sensor or it has not been changed for a few years, then I would definitely recommend it.

does this apply to n/a,s as well????

Yes this also applies to the NA, although the NA uses 2 sensors so it is twice the price to renew them compared to the TT, which only uses one.

cheers Nic

 

Can joe public fit/change these sensors or would a mechanic who knows what to do need to do it ?

 

also you got a link to the group buy please

ta

Swapping over the O2 sensor is relatively easy just 2 nuts to undo and electrical connector to unplug. They are a bit difficult to access though from underneath, you need to remove a small triangular shaped brace and have long arms. Also the nuts holding the O2 sensor on are usually rusted up.

You can also access them from the top by removing the heat shield for the turbo I believe, I've not done it this way though, so not sure which is easier. They are easier to change on the NA as there is better access.

Here's a pic of an O2 sensor for reference:

http://img146.imageshack.us/img146/5046/p1020548ah4.jpg