rb25det AFM
rb25det AFM
i recently added a air filter to the rb25 since its a auto on the stagea,if i take off to about 4k and do a dead stop the car cuts out,or if im on a roundabout and i go to turn since its a slow point the car will also cut out,or if im in 2nd gear from about 5k onwards the needle drops and goes up again then if i give it full throttle it starts to misfire,if its 3/4 throttle its goes fine,can someone tell me is it the AFM that needs to be readjusted or just put the box back on this is very annoying
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l0nestar
- Posts: 2251
- Joined: Fri Mar 10, 2006 5:24 am
- Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS - Contact:
Re: rb25det AFM
Make sure your AFM is clean. Is your filter clogged?
Re: rb25det AFM
Clean as in the sensor is clear or just in general,yeah filter is fine to
Re: rb25det AFM
does anyone know?
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l0nestar
- Posts: 2251
- Joined: Fri Mar 10, 2006 5:24 am
- Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS - Contact:
Re: rb25det AFM
Verify with MAF / AFM spray cleaner. find it at your local auto parts store. Similar to CRC brand Contact Cleaner 2000. This is very different than brake cleaner. they leave *no* residue and dry almost instantly.
I would test with putting the airbox back on. It almost sounds like your metered air is off. do you have any hoses that were disconnected and not capped or connected with the airbox removal? Are there any rips or tears in the couplers on your piping?
Sorry for the slow responses. I haven't been on Nico in a while, just recently came back.
I would test with putting the airbox back on. It almost sounds like your metered air is off. do you have any hoses that were disconnected and not capped or connected with the airbox removal? Are there any rips or tears in the couplers on your piping?
Sorry for the slow responses. I haven't been on Nico in a while, just recently came back.
Re: rb25det AFM
I closed off the plump back that was connected to the bog that goes just after the afm that's about it but I'll have to do it
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l0nestar
- Posts: 2251
- Joined: Fri Mar 10, 2006 5:24 am
- Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS - Contact:
Re: rb25det AFM
What is this 'bog' you speak of?
Re: rb25det AFM
Lol I mean bov
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l0nestar
- Posts: 2251
- Joined: Fri Mar 10, 2006 5:24 am
- Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS - Contact:
Re: rb25det AFM
Ohh! I see.
Wait, did you install a BOV, or did you disconnect the line from the factory recirc valve to the intake?
If so, it needs to be re-connected. The ECU is assuming the recirculated air is there, which it is not and dumps in additional fuel to keep the mixture correct. If this is what is happening. put the stock airbox back on and invest in a 'performance' drop-in filter. (made of mesh, not paper - here in the states the most common is K&N. I don't know where you are so I can't suggest brands.)
Wait, did you install a BOV, or did you disconnect the line from the factory recirc valve to the intake?
If so, it needs to be re-connected. The ECU is assuming the recirculated air is there, which it is not and dumps in additional fuel to keep the mixture correct. If this is what is happening. put the stock airbox back on and invest in a 'performance' drop-in filter. (made of mesh, not paper - here in the states the most common is K&N. I don't know where you are so I can't suggest brands.)
Re: rb25det AFM
i have a good used S1 RB25 MAF forsale
Re: rb25det AFM
WEll I got a rb20 it had the plumpback bov but I changed it and clogged off return pipe and it's not no problems and it already had a apexi filter on it,I'm in Australia but I think I'll just put the box back on I can't be bothered with it anymore lol