Jump to content
SAU Community

Recommended Posts

hey i have an r33 gtst skyline i seem to have problems with it.

when i start the car when its cold the engine feels tip top.

when i drive for a while and the engine satrts to heat up a bit it feels like the car wants to stall and has an idle problem.

when i turn the car on when its hot it takes a little bit to find its idle...

it goes from 100 to 1000 in reving and sometimes stalls when i try.

also when i rev my car a little it sounds like there is a rattle where the timing belt is.

it kicks in at about 1000 and cuts out a little later.

things i have replaced.

oxy sensor

tps

engine and turbo

mods i have

hks airpod filter

carbon battery.

i have video of it

also my throttle cable feels lose as you can see in the video.

$15 will be rewarded with correct awnser for both things that need fixing.

i will slowly replace items once i know whats going on.

on thursday my car will get dignostics done.

i only ask this because everywhere i go machanics are like agrrrr this is the problem but its not really agrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

thanks alex

I've got some money on the AAC valve, or the Cold Start Air Valve (underside of the inlet manifold). But if you've replaced the whole engine, then those would have been replaced.

  • 11 months later...
Yeah sounds like your AAC is stuck open or the regulator is faulty
Pull the plug on and off to see if theres a drop/increase in revs.

What if there is a drop or increase in revs? Which is supposed to happen?

Edited by Neejay
  • 1 month later...
<br />hey i have an r33 gtst skyline i seem to have problems with it.<br />when i start the car when its cold the engine feels tip top.<br />when i drive for a while and the engine satrts to heat up a bit it feels like the car wants to stall and has an idle problem.<br />when i turn the car on when its hot it takes a little bit to find its idle...<br />it goes from 100 to 1000 in reving and sometimes stalls when i try.<br /><br /><br />also when i rev my car a little it sounds like there is a rattle where the timing belt is.<br />it kicks in at about 1000 and cuts out a little later.<br /><br />things i have replaced.<br />oxy sensor<br />tps<br />engine and turbo<br /><br />mods i have <br />hks airpod filter <br />carbon battery.<br /><br /><br />i have video of it<br /><br />also my throttle cable feels lose as you can see in the video.<br />$15 will be rewarded with correct awnser for both things that need fixing.<br />i will slowly replace items once i know whats going on.<br />on thursday my car will get dignostics done.<br />i only ask this because everywhere i go machanics are like agrrrr this is the problem but its not really agrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr<br />thanks alex<br />
<br /><br /><br

wow, we are in pretty similar situations, Ive done a rebuild, done the turbo and only got a pod filter. Yeah only rebuild the long block, so kinda sems like they gave me back this amazing engine block surrouned by sh*tty parts lol. my idle used to be all over the place, so i began replacing parts. i replaced the IAC valve,then eventually the whole unit, got new tps, got it re positioned, got a new throttle body and cleaned the unit out. That worked for my idle issues, never stalled or hunted around much again, only rarely. I'd also check for any vacuum leaks or cracked hoses, ask ur mech to do a compression test. rebuilt engines have so much power when everything around them is running right. also for your rattle, I'd suggest u check that all the bolts up font are tightened. Good luck wit it

Ben

  • 9 months later...

Ben, I am currently having problems very similar to this and you said you replaced your IACV Valve and i have ben told thats what i need to do but i am having a lot of trouble finding out where to get one, Nissan don't want to sell me the valve alone they want me to buy the entire unit and that is around $1k for something i dont need, could you tell me where you got your new/used one from please? I have a 1996 R33 series II.

  • 1 month later...

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

    • Good luck on the weekend mate
    • Must have been an absolute nightmare to drive when the power steer was out, the rack ratio/wheel size/caster is all set up for power assistance
    • Welcome to SAU, what are you looking at buying?
    • I checked the injectors again (1 and 2, since they’re easiest to access) to make sure they weren’t clogged. Even though the entire fuel system had been cleaned, I wanted to be certain. Everything looked clean, so I reinstalled and connected everything. When I started the car to confirm everything was okay, it immediately revved up high, so I shut it off straight away. I checked to see if I’d missed a vacuum hose or something, but everything was connected. On the second attempt, the car ran without the high idle, but I noticed a distinct “compressed air” sound coming from the engine bay. Tracing the sound, I pushed injector #6 forward slightly and the noise stopped — it turned out it wasn’t seated properly, despite the fuel rail being bolted down. While holding it in place, the car idled steadily without stalling and ran for over 5 minutes. At this point, I pulled all six injectors out just in case I hadn’t seated them correctly or dirt had gotten onto the O-rings. Unfortunately, I discovered that I had damaged 3 out of 6 injectors (the OEM 270cc ones) during installation. So yes, this was my fault. Since only the pintle caps were damaged, I’ve ordered a Fuel Injector Service Kit from NZEFI to refurbish them. In the meantime, I reinstalled my new injectors – the car now idles fine for over 15 minutes without stalling. I have not attempted to drive it so far. It’s not perfect yet, as it hesitates when the throttle is pressed, but it’s a big improvement. Unplugging the IACV with the new injectors idles at around 800rpm, even with the IACV screw tightened fully. But this is probably due to tune.
    • I wanted to try and preserve the front bumper as long as possible, they're not cheap and are made to order in Japan. Taking inspiration from my previous K11 Micra build where I made an undertray for the Impul bumper, I did the same for this BN Sports bumper but a little slimmed down.  This time round I only made a 'skid plate' (if that's the correct wording/term) for just the bumper surface area, the Micra version covered the gap like an undertray. Starting off with a sheet of mild steel approx. 0.9mm thick 4ft x 2ft in size. I traced around the bumper, cut it out and cleaned the edges. Luckily I was able to get two halves from one piece of metal In the video I installed it as is, but I've since then I've removed it to spray and add a rubber edging trim. The rubber trim is suitable for 1-2mm and it's a really nice tight fit. The bolts had to be loosened due to the plates being too tight against the bumper, the trim wouldn't push on I used some stainless M6 flat headed bolts for a flusher finish (rather than hex heads poking down), I believe this style fastener is used for furniture too incase you struggle to source some. The corner's are a little wider, but this may be an advantage incase I get close to bumping it  The front grill got some attention, finally getting round to repairing it. Upon removal one fixing pulled itself out of the plastic frame, one side is M8 that fixes inside of the frame, where as the other side is M5. Not knowing I could get replacements, I cut down an M8 bolt, threaded it inside the frame along with a decent amount of JB Weld.  The mesh was replaced to match the bumper. One hole on the bonnet/hood had to be drilled out to 8mm to accommodate the new stud, once the glue had set it could be refitted. I think the reason the grill was double meshed was to hide the horn/bonnet latch (which makes sense) but I much prefer it matching the bumper Bumper refitted and it's looking much better IMO The Youtube video can be seen here: https://www.youtube.com/watch?v=bVZP35io9MA
×
×
  • Create New...