jimnz

hi all. so i just need to do the pre cat O2? someone suggested the temp sensor. - i thought they ment coolant sensor? must have ment post cat sensor. - ill start with the pre cat. plugs, they were NZD$35 each x 6 + labour (rep[lace plugs, check coils, and do a diagnostic($40)) so about right.... with the cats, should i look to replace with after market or just remove completly? will removing mess up the ecu? what price roughly are AM cats? thanks

shit, good feedback,, to anyone above who didnt note its DD not DET so no turbo. Yea it feels sluggish at low revs and as it should as a 2.5 NT pushing 1.7 tons at 3.5 + revs - i guess. 1st and easy is the gas, seems ive been running jap imports that wernt built for even a skeric of performance, so 98 hasnt been needed. My missues 96 pulsar loves 91.. its like a go cart injectors - sure, but it may be too much effort for the result? cats, yea, ive asked my mech about just bypassing them. He says there no law here (nz) to fail a warrant, but it may not be far away. And looking at others, its again not worth the hassle for the result? seems like you guys are saying dont hold too much hope in the O2 and concentrate on the air in/air out. thanks. scotty - its done 160kms. 2002 paid $6k. the last owner got it at 100kms and i dont think he put any effort into the engine. The bodys mint but 2 mechanics say they get the feeling it hasnt had any service love. Now im sure im not as involved in service/tuning as most of the members here, but i do like a car to run near its best. Hence i have atleast got it up to date with the oil/filter, platinum's (gggrr $400) and looking at the temp and O2 sensors. ive found the sensor for NZ$135+gst. so i think that good. they also do the temp sensor for $50 yea ive found out there are pre and post cat sensors. My mech reckons you only need to do the PRE cat sensor. but i thought they both measured againsed each other? Wouldnt this mean that if the post was buggered, the results would be wrong? classone - are you getting 10.5 on open rd or town. i get that on open rd but town is 16.5 yea im light on the trottle but my missus drives it half the time and i dont think shes as conscious as me - really i should just drive it as i want to and i guess our gas consumption would be the same EDIT- am i reading u get 11 in town? how so close to the open rd figures??? thnx for all the info..

its non turbo, but yea ill be switching. asap yea scotty gave me some advice, and yea its exuast related. ================= You won't get much of a response in this section, head into the Stagea forum and ask your questions there Jim. Amayama would be the place for parts, genuine Nissan and cheap. I doubt replacing the o2 sensors will help much, these are big thirsty 2T wagons and you have the smallest engine available. Perhaps you can do a test on them before swapping to see if they are slow to react? The first thing I would be doing is removing as much of the intake as possible and cleaning all the carbon out of it from the egr valve.(I hate these valves) You will see the swirl valves in the lower intake then, and you can decide if you want to remove them, or simply hold them open? They are there to help improve chamber swirl and lean running on the open road though. You rarely get power without losing economy on the factory ecu especially. 91 octane would cause detonation (pinking), the factory ecu would detect this and drop out timing causing a soggy feeling on acceleration. You have a very lean burning high compression engine so it needs all the help it can get, especially now it is building up inside with carbon deposits. I would be using 95 as a minimum. ==================

awsome man, thanks. ill repost in stagea forum too.

hi all, ive reciently brought a 2002 stagea. im looking to firstly get the fuel consumption down and secondly get the power up. i thought there would be more grunt available from the 2.5 V6 and 16.3 liters per 100 in town seems too heavy. (im getting 9.5 on the open rd) ;-) ive just done the plugs and fuel filter and service - no change. the mech put it on the dianogstic and says the o2 senson is due. research shows the main reason will be the o2 sensor. also possible fixes: new temp sensor high tyre pressures 98 octane (ive been thinking 91 would be cheaper) id like you views on the above and any other tips does it have 1,2 or 4 o2 sensors? where to buy? http://o2sensors.com...5&engineID=3037 $200 each http://www.amayama.c...h/?q=22690AL600 varyies on oem or copys.. are non nissan parts ok? thanks for your input. jim

hi all, ive reciently brought a 2002 stagea. im looking to firstly get the fuel consumption down and secondly get the power up. i thought there would be more grunt available from the 2.5 V6 and 16.3 liters per 100 in town seems too heavy. (im getting 9.5 on the open rd) ;-) ive just done the plugs and fuel filter and service - no change. the mech put it on the dianogstic and says the o2 senson is due. research shows the main reason will be the o2 sensor. also possible fixes: new temp sensor high tyre pressures 98 octane (ive been thinking 91 would be cheaper) id like you views on the above and any other tips does it have 1,2 or 4 o2 sensors? where to buy? http://o2sensors.com.au/search/application?makeID=29&modelID=2575&engineID=3037 $200 each http://www.amayama.com/search/?q=22690AL600 varyies on oem or copys.. are non nissan parts ok? thanks for your input. jim