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

    • Kinda glad I never got to this ..    https://www.facebook.com/groups/1483859159195077
    • @GTSBoy This method was able to get readings of -10 to -2, so it looks like its monitoring.  Now I need to figure out why the vacuum on the line provided isn't alternating with manifold pressure.  I went with 2 lines that an RB25 tuner recommended but I'll get a longer hose and try directly off the back of the manifold.  He may have been used to OEM intake setups while I have a DBW setup that removed the MAF and IACV.  
    • I work at a car detailing and tinting shop called Quark which gets all manner of German cars in usually (mainly due to a contract with Mercedes Benz Kita Osaka, BMW Nishinomiya and others) but every once in a while something special comes in, like a fully restored 1972 HS30 Nissan Fairlady 240ZG... The shop owner had immediately started applying film to the windows as soon as it was in the shop so the interior was completely covered in towels and plastic sheets. But I could get a few photos of the engine bay which was restored like new. Such an amazing car to see in pristine condition in Japan these days.  
    • Was going to say the car pulls up nicely everywhere, especially going into that last long right hander before the main straight. Looks like a lot of fun.
    • Hey Dave, welcome aboard! Good to see another soon-to-be Stagea owner here. The wagons are awesome — plenty of space, still got that Skyline DNA, and loads of potential if you’re into mods. Definitely post up pics when you get it, everyone here loves seeing new builds. What model/year are you looking at?
×
×
  • Create New...