Jump to content
SAU Community

Recommended Posts

Meggala please help.

I have a R33 series 1

This is the story: Had my car in the spray shop for the last seven weeks. The car was fully stripped, and taken back to bare metal. The car was not driven and the engine was covered buy plastic -but mostly exposed.

So heres my problem - before the car went in run beautifully. Now got the car back and it wont idle. It idles in the correct position but the revs slowly move down unit it stalls.

It have - cleaned the throttle body

- removed Apexi super air intake an cleaned

- removed AFM and cleaned with electrical contract spray

- cleaned all electrical pugs in the engine bay with electical

contract spray

- reset ecu a number of times

And its still f**ked.

Meggala do you think the AFM is faulty????

I installed S-AFC on Sat (have not had it tuned yet) and in the monitor mode it reads AIR FLOW OK...........so AFM might be OK????

Any suggestions?

Have not done a diag yet, do I have to bite the bullet and pull the f**ken ECU out and run diag.

If it is AFM do I just get the same standard one or can I get a better one???

Thanks in advance

Dan

Link to comment
https://www.sau.com.au/forums/topic/217-meggala-please-help/
Share on other sites

I'm no expert or mechanic but i have heard of issues with the tps (throttle position switch this sound like what it could be. I'd take it to a pro if you can (I don't even know where the tps switch is) I doubt its the afm but try and borrow one to check . if it is the afm gewt a z32 one as they can handel more power and are only 100 buck extra.

cheers

meggala

here is a link with a few sites

try greames site it has good info and the q & a from the old sdu board

http://forums.skylinesdownunder.co.nz/show...&threadid=11541

Link to comment
https://www.sau.com.au/forums/topic/217-meggala-please-help/#findComment-9024
Share on other sites

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

    • Rust repairs completed, doors back on! pretty much totally back together running now. All future repairs will be fiddly wiring getting everything back up to road condition.  hasn’t  taken that long considering the condition I got the sub. note my helpers keeping the back seat warm 😂
    • SAU NSW Old Pac Cruise to Newcastle All Japan Day 2025 Sunday 27th July 2025 5:00AM Meeting Berowra Station Commuter Car Park 2 5:15AM Departure Cruise Via Old Pacific Hwy 7:45AM Arrival to Lambton Pool (Regroup) 8:00AM Arrival to Newcastle All Japan Day 2025 Meet Location: Berowra Station Commuter Car Park 2 Stop 1: Lambton Pool (Carpark) Final Destination: McDonald Jones Stadium for Newcastle All Japan Day 2025 Tickets: Newcastle All Japan Day 2025 $20 Per Car Spectators Free PURCHASE TICKETS HERE *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • SAU NSW Attends Machines & Macchiatos Cars and Coffee Sunday 13th July 2025 7:00AM Meeting Davidson Park 7:20AM Departure 7:45AM Arrival at Northern Beaches Christian School Meet Location: Davidson Park Final Destination: Northern Beaches Christian School Machines & Macchiatos Tickets: $10 Per Car $2 Spectators Pay at Gate LIMITED SPACES Register Below to Reserve your Spot. Members Receive Preference REGISTER HERE   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Thanks heaps Duncan and GTSBoy. I'll get my old man to sit in the driver's seat and turn it on and off while I test with the meter. Or maybe other way round, depending on whether he remembers where his glasses got to
    • This is the GTR fuel pump. Yellow shows 12V, orange shows earth. The ECU provides the earth to activate the fuel pump relay. The ECU side of teh relay will pull low when the ECU activates. This is the RB20 fuel pump. Almost the same, but a little simpler. You can see I indicated (above) where the 12V line goes down to the RB20 diagram on the overall diagram, whch shows both RB26 and RB20. This is where I show it coming in on the RB20 diagram below. You can see that the dropping resistor is handled differently. When the fuel pump control is not providing earth to the pump, the pump earths through the dropping resistor and thus runs at lower voltage (some is wasted over the resistor) and runs slower. I showed that "not 12V and not quite earth" portion of the wiring in a paler orange. The rest of the wiring that I did not colour on that little section below the pump would be orange when the fuel pump coontroller is providing earth. This drop is handled inside the fuel pump controller in the GTR. Regardless, you can see where 12V is supposed to be, where earth is supposed to be. The key on prime is via the ECU providing the pump for only a few seconds the switching off. You should be able to see that happen.
×
×
  • Create New...