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.kiwi.
P Plater
39 Posts
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 Posted - 28 Mar 2008 : 10:14:56 AM
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does the series 1 vn v6 come out with an air flow meter? i dont think mine has one. also where is the o2 sensor supposed to be? i dont think i have one of them either. and where do they plug into the electics if they are meant to be there?
Thanks.
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MILD50
Fully Licenced
850 Posts
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Posted - 28 Mar 2008 : 3:17:48 PM
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Will have an O2 sensor- I know on mine (which is a 5litre so the six might be different) it is on the passenger side exhaust manifold mounted really low- close to where the headers end and the exhaust pipe begins.
Not sure on air flow meter... doesn't mean it isn't there, just means that mine hasn't packed up yet and needed replacing (if it is indeed there ;)) |
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nodg
National Driver
1667 Posts
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Posted - 28 Mar 2008 : 3:47:58 PM
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| buicks dont run an airflow metre, they run a manifold absolute pressure sensor which is located on the passenger side firewall with a hose and wiring going to it... the 02 sensor is located on the passenger side exhaust manifold. |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 29 Mar 2008 : 11:59:42 AM
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cheers for that nodg. no wonder i could never see an airflow metre in any pics.
i thought the o2 sensor went there, its cool the v8's and sixes have stuff in the same places, but mine is missing. its got a steel plug with an allen key hole in it filling the hole. any ideas on what that would do for how the car runs? my digicam is stuffed or i would take a pic.
its my first vn and the first manual i have been in and i think it runs good as now that i replaced the coil pack. |
Edited by - .kiwi. on 29 Mar 2008 12:00:15 PM |
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nodg
National Driver
1667 Posts
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Posted - 29 Mar 2008 : 12:49:43 PM
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| the nz models were the only commodores that came stock with no o2 sensor, is there a plug of some sort above te passenger side rail in a loom? get some pics and ill tell you straight up. |
Cheers,
Nodg. |
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MILD50
Fully Licenced
850 Posts
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Posted - 29 Mar 2008 : 1:00:17 PM
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| Any reason no O2 sensor was used? Does it have to do with the emissions controls? What differences are there in the ECU so that the lack of this sensor doesn't effect running? |
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.kiwi.
P Plater
39 Posts
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Posted - 29 Mar 2008 : 1:53:34 PM
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| sorry cant do a pic at the mo. running alongside the passenger guard under the bonnet there is an unused electrical plug on the loom. it has 2 rows of 5 little female plugs in it, 2 are unused, so its like an 8 pin plug goes into it. it is about 5 cm's forward of where the manifold absolute pressure sensor wires join the loom. |
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nodg
National Driver
1667 Posts
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Posted - 30 Mar 2008 : 12:56:23 AM
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mild- it doesnt effect the running of the motor, the ecu's over there in vn's are just tuned without the use of an o2 sensor. i also belive they dont use a cataylic converter....
kiwi- i have an idea what your talking about but the wiring should be running above the rail (beside the exhaust manifold) as soon as you get a pic post it up and i can help you further |
Cheers,
Nodg. |
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MILD50
Fully Licenced
850 Posts
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Posted - 30 Mar 2008 : 12:46:58 PM
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| I thought the O2 sensor went some way in helping the computer to determine whether to richen or lean off the fuel mixture? |
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nodg
National Driver
1667 Posts
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Posted - 30 Mar 2008 : 6:45:13 PM
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| yeah but the ecu can be tuned so it doesnt have to be installed, however better economy is yielded by the use of an 02 sensor. |
Cheers,
Nodg. |
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trizo
Forum Moderator
3091 Posts
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Posted - 30 Mar 2008 : 7:21:37 PM
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| surley they would have to have a cat! |
3 can keep a secret if 2 are dead |
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nodg
National Driver
1667 Posts
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Posted - 30 Mar 2008 : 7:51:39 PM
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| dont quote me but they dont (or back then didnt require) a cataylic converter. not 100% but fairly sure |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 31 Mar 2008 : 12:37:10 PM
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i just got my VN so i dont know if its a factory exhaust or not(i would be suprised if it is on a 18 year old car), it has got 3 mufflers on mine so its definitly not a sports exhaust lol. there is no catalytic converter. there are no laws in NZ saying we have to use them. i dont know what different gases or poisons do but according to one study cats can reduce carbon monoxide by up to 85%, nitrogen oxides by up to 60% but they cannot reduce particle matter and actually increase the output of carbon dioxide.
i got that info from,
http://www.mfe.govt.nz/publications/ser/ser1997/html/chapter6.7.html
personally i did not hear of them til i was working with jap imports at a car sales in the early 90's |
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nodg
National Driver
1667 Posts
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Posted - 31 Mar 2008 : 10:07:31 PM
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| so you are from nz? you dont have the o2 sensor at all then in that case..... |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 31 Mar 2008 : 11:22:24 PM
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| yeah sorry, thought you realised i was in NZ. its in these forums a few times about how the o2 sensor improves economy, but i dont remember seeing anything anywhere about affecting performance. |
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nodg
National Driver
1667 Posts
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Posted - 01 Apr 2008 : 12:00:56 AM
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| what type of performance are you getting? for the standard run of the mill vn will get about 350-450 to a tank, but if you granny it you can see 500, maybe a bit more. now i know your from nz, do you have the 2 litre or 3.8? hopefully its the 3.8 v6 otherwise id be very disapointed.. |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 01 Apr 2008 : 12:00:48 PM
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| lol Nodg, hell no!! its not a 2 litre. that would suck driving a 1400 kilo car with only 2 litres to push it. i have been in one and they are dangerous, they can wind up to a decent speed but they dont have the power to help ya round the bends on the open road. because i have only had the car for about 2 weeks i dont get good economy at all. you know what its like with a new toy :). if i wanted economy i would drive a wee hatchback barina (i drove one of them for 5 years). i will go for a drive today and see how long it takes to go from 20 to 80 k's in second gear, that should give you an idea on performance. i wanted to do that before i get my pod air filter and chip sent from 'greenfoam' over there in oz. |
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nodg
National Driver
1667 Posts
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Posted - 01 Apr 2008 : 1:30:06 PM
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| everyones getting greenfoams chips here, but i think it would be the same as the high end performance chips from a shop, except cheaper. go into the how-to section, give the car a full service then test economy as it will make a big differance if it hasnt been done in a while. |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 01 Apr 2008 : 3:25:19 PM
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| from 20 k's, about 800 revs and stomping the pedal and holding it flat in second(5 spd manual), it gets to 80k in 6.1 seconds. thats the best time out of 4 goes at it. dont really get any power til after 2500 revs. will do that again after fitting the pod and again after the chip. |
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nodg
National Driver
1667 Posts
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Posted - 01 Apr 2008 : 6:05:31 PM
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| a big improvement on the usual v6 is to spray throttle body cleaner into the intake, when you take the induction pipe off and look inside youll know what i mean, clean all the black gunk to the best of your ability, its its really gunked take the whole thing off and give it a good scrub. dont miss the iac motor which is located inside the little hole in the throttle body, should see a good amount come out of there. also check the manual level, as its not checked as often as an auto. other than that sparkplugs, oil and filter, fuel filter and maybe a bottle of injector cleaner and take it for a good run to blow some of the spiderwebs out. |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 04 Apr 2008 : 11:44:34 AM
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| i just went for a drive to christchurch towing my small 6x4 trailer. i drove like a granny most of the way driving between 100-110kph and i got 615k's out of 62.19 litres of fuel. thats not too bad is it? thats still with standard chip and air filter |
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nodg
National Driver
1667 Posts
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Posted - 04 Apr 2008 : 11:27:20 PM
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| i dont think theres too much of an issue with your car by the sounds of things, as long as the transmission is changing smoothly, at the right time and the motor purrs along. |
Cheers,
Nodg. |
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.kiwi.
P Plater
39 Posts
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Posted - 09 Apr 2008 : 11:58:05 AM
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there is the photo you wanted nodg, hope i figured out how to put them on the site :)??
yep its there, but how do i shrink it to a thumbnail so it gets bigger when its clicked on? maybe a mod can please edit it so it dosent use heaps of unnessecary bandwith?
the plug i talked about is circled. i think a clean is also in order looking at this pic :)
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Edited by - .kiwi. on 09 Apr 2008 12:03:13 PM |
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nodg
National Driver
1667 Posts
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Posted - 11 Apr 2008 : 12:34:12 PM
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| i just got out of syrgery today and cant see to well, ill get back to you in a day or 2 |
Cheers,
Nodg. |
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