hi guys
recently my nissan sentra 1.8 petrol consumption has gone to hell. full tank can only reach 300km.

want to service at tan cheong also takes two weeks appointment pre booking - may i know if you guys know of any reliable service centre that i can send to check on this pronto ?

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Added on February 6, 2012, 12:38 pmyeah, why not ? 33k is dirt cheap for a sentra

This post has been edited by carpathia: Feb 6 2012, 12:38 PM

hello everyone
sentra 1.8 (2005) owner here. I am quite frustrated - my nissan sentra fuel consumption recently went crazy ( full tank - only reach 300km) where previously i can hit 400km no problem.

already sent my car to nissan authorised service centre once and tan cheong HQ twice...still cannot solve problem....change spark plugs, retune engine, clean valve service, etc..etc...still cannot fix this problem.

i wonder if there are any owners such as me facing the same problem? i have called tan cheong HQ and now awaiting 3rd service confirmation to fix the high consumption.

Yes . Even had new tyres fitted

yeah . same route, same traffic condition. thats why i am really really baffled as to why the FC suddenly went up so high!

i already sent my car to nissan authorised service dealers 2 x and tan cheong HQ 2 x ...still no one can help me : (

they already did retuning engine, change spark plugs...

brotan - you have the same problem as me. better send to nissan HQ to fix.

nissan HQ just contacted me, i will leave my car for 2 days for them to do thorough check up and advise on how to fix. Their specialist says it may be due to too much carbon residue at the valve but i said i already perform valve clean service with them just few weeks back. no change in route or driving conditions also.

suggest you also do the same. right now , my car full tank cant even reach 300km....very very serious problem.

no charge. i already service my car there and they need to solve this problem no matter what.

zac1- i think your idle rpm a bit high

brotan - for normal service, any car service centre will do. but for tuning and fixing, go look for nissan service centres or authorised centres.

not everyone knows how to tune and fix nissan, IMHO.

I seriously think you guys should send it back to NISSAN to fix. yes, they may costs more but from my experience, these mid/major replacements parts only nissan can do a proper job. i have tried so many times getting outside shops to fix but no one can do a better job than nissan. Yes, they may cost a bit more but you have the peace of mind that they will fix any problems without any fuss when you bring your car back.

i just got my car back from the nissan HQ - car seemed to respond better but need to wait few more days to see if the fuel consumption is now better. They told me that one tube was installed wrongly, could be the cause of my problem - one more example of why outside workshops cannot do a proper job.

BAD NEWS to share

1) Despite sending my car to Nissan HQ 3 times, they couldnt solve the high fuel consumption problem. they are asking me if i want to do major overhaul ( 6-8k service costs!!!!) and that will fix the problem they say

can anyone help intro me some other place to diagnose or fix the problem ? i really cannot tahan paying so much for fuel man.....full tank cant even reach 300km......

why year 2001 ? quite an old car ?

depends on spark plug wear and tear

power steering - i cant recall

1) Yes they are reliable but i find that the 1.8 somehow is better in terms of performance ( of course) , FC and noise insulation. The steering feel is also different from a 1.6

2) cheap. never had any expensive spare parts replacements before

3) no comparison - the noise level, comfort and power is just so much worse in waja. dont bother with the waja mate.

hey lot 101=
how much was the throttle body that you replaced ?

also rear dampers - is that the same as shock absorbers?

still not resolved.
my friend advised me to get a mechanic to "wash" the o2 sensor bcos it worked for his sentra but one mechanic told me to change it instead - now he told me that MYVI o2 sensor costs around rm7xx so i dunno how much a sentra o2 sensor is gonna cost

shinkawa is right - RM300 is way to expensive for a maintenance free battery!