Jump to content
SAU Community

Recommended Posts

hey dudez

just had my major service completed the other day

i had replaced:

timing belt

water pump

cam seals

spark plugs

fuel filter

now when just cruising around, i change gears and the car backfires, not really loud but has never done it b4. when i really give it a boot and change gears it is quite loud. now i have the car booked in to get a dyno tune and was just wondering whether this will fix the problem. and the car has always been out of tune a bit so im hoping this will get rid of it. it has always backfired on decellaration too, which i wasnt worried about.

mods to the car are 3" turbo back exhaust, FMIC, pod, bov and boost to 12psi.

thanks for your help in advance guys

cheers

jabba

Link to comment
https://www.sau.com.au/forums/topic/128657-backfire-after-service/
Share on other sites

i used nissan genuine plugs, they supplied them.

i just thought its wiered that i have replaced everything with new and now its doing it. never did it b4...

im not worried really but its rather annoying when u give it a boot, my car sounds sick.... :laugh: lol

thanks for your help dudez

its a turbosmart bov, so thats atmospheric yeh?

Edited by JVP-R32

yeh it has a silicone hose coming off the end

i think its a type 3...cant remember...

would a dyno tune help, im getting it done regardless, but when they fidle with the fuel and timing when they tune it, could this repair the problem? im getting an ecu chip done very soon also. when they replace the timing belts, does the tune go out of whack? sorry im a n00b at this.

thanks guys

Its just running rich? ie. the R&R that normally occures with std ecu? 12PSI? on std turbo everyday? damm

My car backfired heaps when I did a few more mods to it and uped the boost. It would backfire every gear change, every downshift, I was even able to make it backfire on demand. Off throtle and on throtle etc..

Sometimes it would backfire by itself 4times in a row! "ZOOOM POP POP POOOP POP"

You shouldnt have anything to worry about, just means car uses more fuel, and the cat might be rooted lol

  • 3 weeks later...

car still back-firing, new fuel pump installed (bosch 040)

plugs were genuine nissan, which cross referenced to PFR6A-11, as recommended on here....

could it be the coils?

the pop is really loud, can feel it in the cabin lol

just need some help, its doing my head in.

cheers guys

When is it happening.. coming onto boost.. or when you back off boost..

Is it happening ALL the time, or only after you have been giving it a bit of a run..

If it's a) backing off boost & b) after you've been giving it a bit - the excess fuel is just being ignited as it hits the turbo/exhaust causing it to pop.. not really a huge issue..

Not sure why you'd get a "Dyno tune" when the car has the stock ECU.. unless you think there is something seriously wrong I don't see the point.. unless you want to see how rich your A/F ratios are going..

Not sure how a new fuel pump will help..

Hmm.. trying to think of what else it is.. more details on when it happens would be good..

  • 5 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Mixing things up - installed some leather recaros to match the leather seat covered rear seats. Interior looks pretty schmick now except for some slight wear on the steering wheel which I will monitor and address if it becomes worse or actually noticeable!  
    • Didnt realise RB's had more then 1 head.
    • I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
×
×
  • Create New...