Jump to content
SAU Community

Idle Hunting Problem. No Fuel Filter On R33 The Problem?.....


Recommended Posts

So my skyline apparently does not have a fuel filter and it looks like it has been modded to bypass a filter. It has been giving me idle problems over the past few months when the engine gets warm and have yet found a solution to this day... so i was wondering could this be the problem?? i cleaned the throttle body, cleaned the idle sensor, and cleaned the map flow sensor as well as re-soldering the joints inside & coil packs are good. Any advice would be appreciated guys. May need a oil change but have not gotten around to it.

It’s an r33 s2 1996 looks like it had a engine swap for a s1 engine no idea what year though.

Does it have stock ECU? Try an ECU reset and see if that helps.

No fuel filter sounds a little strange. Might wanna put some injector cleaner through it too.

It looks like the stock ecu to the engine (Rb25det) but it was hard wired to the original wire loom in the car instead of changing the whole thing out. Ill get some injector cleaner and throw it in my tank it and try a ecu reset over the weekend. It seems to mostly give trouble when its low on gas after i filled the tank the other day its been fine to drive home and work but its only a 5min trip so ill have to try a little longer trip after the weekend.

Injector cleaner is a waste of money, does nothing. If your having trouble with 1/4 left in the tank, then you might have an aftermarket fuel pump (walbro, bosch etc), they rarely get installed correctly and this is what always happens.

  • 2 weeks later...

Same Scenario with my car! but no probs with idle

I got s2 type m r33 and engine i just got put in had only 88K on clock ( straight from the half cut) its a S1 engine had to do all the loom changes , engine etc etc. took abt 6 weeks to complete!

should i put a fuel filter or just leave it ?

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

    • Thanks, plan is to drain all fluid tomorrow and do smoke test to find out the leak.   Appreciate your help and want to understand how the system work. So cooling is achieved by the long loop not any rad? The diagram seems to suggest it connects to somewhere inside the cabin and I thought that is a cooler inside firewall. If you look at the diagram it seems to show it connects to something inside firewall. I tried chasing it but not easy unless I take loads off   i am confident pump is good as fluid goes in and it gets soft( steering) but as soon as I turn engine off , loads of bubble come to surface and overflow. When engine is on , fluid level is below minimum but when off it shoots off and thinking it is sucking air in. I suspect aluminium pipe may have a crack line or whole   smoke test with no fluid should be a good start and if needed will remove the pump   In addition, the one going under the engine bay is high pressure line and one directly connecting from pump to resorvoir is return/ low pressure?   finally I searched and suggestion is to use dexron 2 but that is discontinued so bought dexron 3 as all research suggest it is compatible and shouldn’t cause any issues/ blow seals. I bought two liter of dexron 3 motul atf
    • Don't worry about. Just don't try to drive hard enough to make boost and you'll be fine.
    • Yes. This has already been said. It is a loop of hardline in front of the radiator. Because.... the pump is on the LHS and the steering rack hydraulic connections are where they always are on a RHD steering rack....on the RHS. The high pressure line goes down under the engine, along the crossmember, like it does on all Skylines. Don't just throw expensive braided hoses/other kits at it. Work out what is wrong and fix that.
    • Still got the afm on the intake, clamps are shut tight, only loose hose is the one that goes from the j pipe towards the IACV, since it's next to impossible to find a factory hose and the barbs are different sizes (I'm still using clamps on this hose to try and help it seal on the iacv side) I've ordered parts to make up the hotside of the intercooler pipes, I'll plumb it in and see what happens in a few days I suppose The turbo's internally gated, can I just unscrew the tension rod to let the gate open?
    • Did this ever go further ? Would love some updated info 
×
×
  • Create New...