Jump to content
SAU Community

Recommended Posts

Hi all, new to the forums.

Bought a 90 R32 gtst recently. All was going fine, until I decided to give it a service.

After I bought the car, I gave it the once over. Changed spark plugs, fuel filter, fuel pump, engine oil n filter. Now, for some reason, especially under a bit of load, i get an inconsistent sputtering, as if its starving for fuel. The car has managed to stall because of this once, but mostly it'll just sputter for about 30 seconds, then it'll be fine until the next time it gets driven and it happens again.

Plz bare in mind, b4 it was serviced it ran fine. Car is standard appart from a cat back exhaust which i had fitted.

Any help would be appreciated.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/352835-sputtering-r32-gtst/
Share on other sites

Given that you changed the fuel pump and fuel filter, it sounds like the car might not be getting enough fuel under load. What pump did you change it to? and how much fuel have you had in the tank?

Also, give the AAC a clean up near the throttle body. Might not be the problem now, but it often gives similar symptoms when it's dirty.

Standard fuel pump. Car hasn't been touched, it's standard apart from a cat back. Aac been flushed with tb cleaner. After browsing the forums I'm starting to think it's the coil packs.

Until servicing the car, nothing looked like it been replaced. Spark plugs looked like originals from factory. I'm suspecting a hairline crack in the cp's.

Car ran sweet even if it looked like it hadn't been serviced. after servicing it the problem began. It was imported less than a year ago and it was sitting in a garage untouched for the best part of six months...

What are the plugs you put in it ?

What size gap also? If it's stock boost then gap plugs to 1.0mm

On standard coils when they start to arc out or drop spark you can see marks on the plastic looks like there burnt but its not obvious but noticeable if looking for it

If they are arcing out you can tape them or silicon them or gap the plugs down so your weak sparks not getting blown out

but it's still a cheap fix that will let you down eventually ...

Coil packs are killed buy heat and having the coilpack cover on can contribute also because there is no where for the heat to go

Also double check everything you touched ( like vacuum lines etc it only takes a Loose clamp split old hose for air to lean from witch could put the air flow meter out cause the engine isn't getting the air that the air flow meter says it is

Hope that helps mate

Try regapping the 1.0 to 0.8mm and see if that fixes it. Could well be the coilpacks. Given that the car is 21 years old, the coilpacks will be on their way out and by changing the plugs you could have disrupted how they sat.

regardless, it's probably better to regap your plugs anyway. Hopefully it will solve the problem though.

Just an update, checked over everything this morning. Coil packs looked fine etc. Checked all hoses n found that the breather hose ontop of the block had a good crack through it. Replaced it, n belted the car down the freeway without so much as 1 sputter.

I'm yet to believe that was the culprit. I will run it a bit more this arvo n see how it goes. Fingers crossed.

I have to same problem in my R33. I'll be watching this thread enthusiastically.

What fuel are you using? I was using a 98 with ethanol for 6 months before realizing it had ethanol in it... so I switched to v-power and it's not as bad.

It gets worst when the air cons on, and it drinks the fuel like crazy with the aircon on.

So far so good. Ran it most of the day up n down the mountains, not so much as 1 sputter. Looks like the cracked hose was the culprit..

Glad to help mate and it's a problem I had on my last 32 so I no the symptoms all to we'll happy motoring mate

Bout 78ks...I'll pull out the coils tomoz n clean em out the slap some silicone all over em n see how it goes. Was looking at replacing the coil packs this week..any premium recommendations? I've seen splitfires thrown around on the forum a bit? Price? I'll give the afm a clean 2..

Although, I can't explain for the life of me why yesturday in 42 degree heat running almost non stop no sputter, yet today in cooler weather it's acting like a camel running on empty..

I got a set of splitfires off eBay they were genuine ones also they were 600 posted to my Door which is good considering autobarn and shit places like that want a grand a set if you have the money go with spitfire worth the money but on my current 32 I cheaped out and got super sparks which can be a bit of lucky dip mine were ok but a mate bought some for his 180sx and they were f*ked straight out of the box you hear good and bad about them I'm pretty sure super sparks are about 500 to your door from eBay but there is a new company that make yellow jackets I think there called I don't no much bout them but there bout 400 to your door but I would check the feed back on them

Another option is u can get series 2 rb 20 coils supposed to be a bit stronger and last longer also series 1 rb25 coils work also hope that helps bro

Try taping or silicon them first or run ecu for errors And it should tell you where the miss is if it is coil or sensor related it should tell you which cylinder is miss firing

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

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...