Jump to content
SAU Community

Recommended Posts

Trying to get my RB20det gtst4 r32 to start this morning.

I have never got it running since I bought it.

There is supposed to be nothing wrong with it as far as I know although, we found there was no spark. So first we replaced the ignitor and that seems to have fixed our spark problem but car will still not start.

The car is not firing AT ALL.

Definitely getting fuel, we saw it squirt out the chassis rail lines.

Ecu is spitting code 13 and 43.

Just don't know where to go from here.

We will reset the ecu and see what happens

Please help :D

Link to comment
https://www.sau.com.au/forums/topic/298774-my-freaking-rb20det-wont-start/
Share on other sites

The fuel needs to come out of the injector, not out the chassis rail lines.

Are the injectors working? Can you hear them "ticking" while cranking?

Are you trying to start the engine with a healthy battery? The ECU needs something like 7V to stay "alive".

Do a compression test on the engine.

The meaning of the error codes. 13 = "Engine Temp sensor" - break or short circuit in the sensor system. 43 = "Throttle sensor system" - disconnection or short circuit in throttle sensor system. The errors are persistent, they exist for about 50 starts. So reset the ECU, then immediately check for errors.

First thing I would check are......

Do I have pressure in my fuel lines

Are my injectors getting signal

Is my CAS in the right spot

Is my fuel shit and old and needs replacing

Even if you had half decent fuel and the CAS was a little off it would start but it would run like crap. Does it try and fire at all or do you just keep turning and turning and getting nothing?

First thing I would check are......

Do I have pressure in my fuel lines

Are my injectors getting signal

Is my CAS in the right spot

Is my fuel shit and old and needs replacing

Even if you had half decent fuel and the CAS was a little off it would start but it would run like crap. Does it try and fire at all or do you just keep turning and turning and getting nothing?

Definitely have pressure in the fuel lines.

We listened to the injectors and we could hear them ticking.

We are going to try another CAS tomorrow but have inspected it already and seems ok.

Starting to think maybe something with the fuel system isn't right.

Basically just turns and turns till the cows come home and nothing exciting happens :)

tip.

unplug the ecu from the loom, and then put it back in but this time make sure the plug is sitting all the way into the ecu. screw the 10ml bolt a few times and press both sides of the plug and keep doing this untill its in correctly.

If the injectors are ticking, then the CAS is working (ECU gets a signal from the CAS then calculates when to fire the injectors).

Are the fuel lines on the right way? Also, pull an injector and watch the spray while you are cranking the engine (sit the injector in a glass jar or similar). Engine might well be flooded. Pull the spark plugs and dry them off. Also, try starting with WOT.

The errors you are getting will not prevent the engine from starting.

With the ignition on check for battery power to coils (whilst you are at it check AFM and CAS as well). If you have verified you aren't getting any spark I would focus on the ignition system. It is a process of elimination.

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

    • @Murray_Calavera iam just considering options 🙂 of course it is very expensive so that why i ask here 🙂  @joshuaho96 I looked at that GCG hybrid(i remember looking at it few weeks before) So this is "that" hybrid where i send them my turbo and they upgrade the inside to Garrett stuff and then they send it back. It cost around 1200-1300 USD which is FAR cheaper than the HKS and it is what iam looking for(i just do not have experience like this...to send something off to "upgrade" ) @tylink720 that is like 150 USD turbo no? 😄 I dont think i have the "ease on my mind" with this kind of turbo. I just put over 7000k USD to "LINK" up my engine...dont want to blow it up with cheap turbo 😄     EDIT: https://www.cj-motor.com/gcg-turbo-charger-for-nissan-rb20det-rb25det-high?srsltid=AfmBOooVeOZ6CZ6r1AIv5m-KPaa6BvudIPJTY8LW78khkd-gQlsaCht9 I looked at this and it seems ok? It is that CGC hybrid and it costs around 1250 USD (with back shipping). Do any of you have experience with this hybrid on NEO turbo? I quickly look thru the forum/web and it seems very good.
    • Echo the awesome sentiment 👍 Definitely a car worth saving. Looking forward to seeing updates as well. 
    • Scenic roads, stunning skylines, and Chickos to finish it off! Join SAU NSW as we cruise through the Royal National Park and along Lawrence Hargrave Drive to Figtree! Sunday 26th October 2025 4:30PM Meeting Waterfall Station Parking 5:00PM Cruise Departure Royal National Park > Lawrence Hargrave Dr > Memorial Dr > Sid Parrish Park 6:15PM Arrival at Sid Parrish Park Figtree Meet Location: Waterfall Station Parking Final Destination: Sid Parrish Park RSVP: https://forms.gle/E4s5SiRKQfDdypky8 *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.
    • It's funny, as Ive seen plenty of people use them in cheap builds on YT. And they actually go okay, even though a lot of other maxspeedingrods stuff is terrible. Those turbos seem reliable enough, the only part being, a good quality turbo that is "identical" to it, will out perform it day in and day out. In both a lower boost threshold, and the ability to flow more air at the same boost pressure. As a cheap cheap replacement, not a terrible choice. For cheap and shouldn't blow in a day, not terrible (like other eBay/Temu turbos) for low cost and still decent performance, that's where the question comes in to play from the results I've seen. I'd actually find it hilarious to buy one, and strap it to a paddock basher or some other cheap as POS originally NA car, and send it to the moon!
    • The maxpeedingrods turbo is cheap and bolts on to stock parts. I think you just need a bigger silicone coupler for the intake. Its a cheap china turbo, but it's been running on mine for almost 3 years at 16-19 psi.
×
×
  • Create New...