Jump to content
SAU Community

Recommended Posts

Well for the past two weeks my car has had this problem... At first I thought it was the AFM, so i checked it with 2 different ones to no avail. So o then thought it was a connection problem in the loom plug, but last night, Me and Hippy tested all the connections with a multimeter and we found that they were fine (eventually).

So now im at the stage to think the ECU is buggered :D So ill be trying a new one tomorrow to see if that fixes it.

However what has got me really confused is that sometimes the car runs fine, revs perfectly, and about the other 95% it runs like crap. Could it still be the ECU even though the problem goes away and comes back???

Sooo confused....

Link to comment
https://www.sau.com.au/forums/topic/19805-help-car-wont-rev-over-2500rpm/
Share on other sites

Well i went to see Boosted (member from SA) and we found the problem, faulty plug, aswell as a maybe fried ECU.

Will find out on monday or tuesday whether the ECU is fried... Diagnostic comes up with AFM circuit. ITs not the AFM, its been changed 3 times..

Hehe cleaned it many times with contact cleaner. Guys its a biggish problem. The last 2 weeks its been happenin ive tried everything. Thanks for your suggestions...

I have no idea how the ECU may of fried....

My logic to this is: Today tried a new ECU, the car still didnt work. We then put pressure on the plug which connects into the AFM, and the car would be good, take pressure off and its stuffed again.

So then i put my original ECU into the car and put pressure on the plug and it wouldnt work...

So yeh thats why we think the ECU is buggered aswell.

I had a strange thing happen with my AFM quite some time ago when the FMIC was fitted.

When first starting her up she was lumping as if it had a huge arse cam in it.. Lots of black smoke out the arse end.

Tried to rev her up and it was a real flat not wanting to rev type rev. Pulled the AFM off put it back on and did the same.

Slapped a R33 AFM on and it was perfect no problems. Then after the tune we slapped my AFM back on and it was ok.

My guess was a dodgy plug.

Yeah theres something about those plugs cause that power steering fluid prob was not the only one I had. I almost felt like it had a wire loose inside. Fortunately i have not had a problem for some time now......................touch wood.

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

    • By popular demand.. it was a coil. Got my hands on 1 new OEM coil, replaced with the one that made the less noise difference when I unplugged it while the car was running and started the car up. No stutter and the engine light was gone. I guess I’ll buy the other 5 they have lol
    • No, code 21 is very straightforward. It can only be the things described in that diagnostic flow. In fact it has no way of knowing that the spark plug resistance is out of spec.
    • Hi, SteveL Thank you very much for your reply, you seem to be the only person on the net who has come up with a definitive answer for which I am grateful. The "Leak" was more by way of wet bubbles when the pedal was depressed hard by a buddy while trying to gey a decent pedal when bleeding the system having fitted the rebuilt BM50 back in the car, which now makes perfect sense. A bit of a shame having just rebuilt my BM50, I did not touch the proportioning valve side of things, the BM50 was leaking from the primary piston seal and fluid was running down the the Brake booster hence the need to rebuild, I had never noticed any fluid leaking from that hole previously it only started when I refitted it to the car. The brake lines in the photo are "Kunifer" which is a Copper/Nickel alloy brake pipe, but are only the ones I use to bench bleed Master cylinders, they are perfectly legal to use on vehicles here in the UK, however the lines on the car are PVF coated steel. Thanks again for clearing this up for me, a purchase of a new BMC appears to be on the cards, I have been looking at various options in case my BM50 was not repairable and have looked at the HFM BM57 which I understand is manufactured in Australia.  
    • Well the install is officially done. Filled with fluid and bled it today, but didn't get a chance to take it on a test drive. I'll throw some final pics of the lines and whatnot but you can definitely install a DMAX rack in an R33 with pretty minor mods. I think the only other thing I had to do that isn't documented here is grind a bit of the larger banjo fitting to get it to clear since the banjos are grouped much tighter on the DMAX rack. Also the dust boots from a R33 do not fit either fyi, so if you end up doing this install for whatever reason you'll need to grab those too. One caveat with buying the S15 dust boots however is that the clamps are too small to fit on the R33 inner tie rod since they're much thicker so keep the old clamps around. The boots also twist a bit when adjusting toe but it's not a big deal. No issues or leaks so far, steering feels good and it looks like there's a bit more lock now than I had before. Getting an alignment on Saturday so I'll see how it feels then but seems like it'll be good to go       
×
×
  • Create New...