Jump to content
SAU Community

Recommended Posts

The ECU warning light on my 34 has started turn on. Its the one on the top right of the speedo. It only comes on about 5 mins after the car is started as if an error is only detected after the car has warmed up. Anyone ever had a similiar problem. Wondering whether the SAFC is messing up the ECU. Car is going in the shop next week but was wondering if anyone knew about what could cause this. The car seems fine and is running without anything noticeably wrong.

Link to comment
https://www.sau.com.au/forums/topic/21607-warning-ecu-light-on-the-r34/
Share on other sites

Thanks Ben HPI. I was told that by my mechanic ill get it checked out next week. One thing though, my mechanic wants me to disconnect my SAFC casue he thinks they are not worth the hassle and he doesnt want to tune the car with it on. Should i change mechanics ?

By the way HPI rocks

are you sure its the check engine light??? is it the oil light??? checked oil levels lately???

some sensors may be malfunctioning, for instance your AFM? maybe try some contact cleaner on it?

goto a different mechanic. the fool obviously doesnt know what to do with the safc. they will be a tremendous help when properly tuned. and you know you can default your safc back to zero's and essentially let the ecu run "factory". ???

Originally posted by N/A®

ben,

what do u recommend for the R34 without touching the internals?

What do you mean? Just a turbo recommendation or a whole package? Are we talking about a GT-t? What do you want from the car? I can't make any recommendation without this sort of info

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

    • Sounds like you've got an interesting adventure ahead here with local support if you have trouble! My guess is that, unboosted, you will be OK with a small upgrade like -9. What will happen is that once the stock ECU sees more airflow than it expects it will add a heap of fuel and pull a heap of timing to be safe because it can't understand how it could get that much air without there being an issue. You will see clouds of black smoke and it won't pull hard through the midrange and top end. So, overall it will be a bit frustrating but should be OK. If you are still nervous set the base timing back 2o through the CAS, but it will be even more sluggish everywhere. As said above through...this is not my guarantee your engine won't be blown into a million pieces, leaving you looking for very hard to find parts A better idea is get a computer with logging ASAP, wire in a wide band O2 sensor and a use remote tuner. I've done multiple cars this way and while it is not as good as a specific tune on a dyno they can get it 90% right. I'd suggest if you can afford an R33 GTR these days you can afford an ECU and tune. And if you can't afford that you sure won't be able to afford the rebuild if it goes bad in the meantime,.  
    • Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms. I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis. If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it  
    • Just top it up with water, and keep a general idea of how much you added. It is normal for water to be pushed into and pulled out of the reservoir through the cap, and it should not be more than half full or it will be likely to overflow when hot. Any decent mechanic can do a pressure test of the cooling system to confirm if you have a leak. Keep in mind if it is only leaking a little and when hot it may well evaporate before you see it hit the ground
    • I'd ask the shop what they used and use that. Mixing coolants is sometimes OK, sometimes not, and you have know the details of each coolant to know whether it's a good idea or not.
    • Is it alright to top up with just another green coolant?
×
×
  • Create New...