MrRx7s3 Posted June 12, 2014 Share Posted June 12, 2014 Hey guys I have a r34 GTT with a power fc just the stage 1 mods, and suddenly the engine light started flashing at around 5500rpm and is if there is like a boost cut. I instantly thought it was knock and grabbed the hand controller and it was only like 10. So I thought it might have been the injectors maxing out for some weird reason but they are at 92%. Air Meter at 5100, I swapped over the AFM with a spare that I have and it's still doing it. Next step I disabled the Injector warning - Still flashed. Disabled the AFM warning - still flashed. Turned the o2 sensor function off - still flashed. What the hell could it be I have no idea, please help, thanks. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/ Share on other sites More sharing options...
89CAL Posted June 12, 2014 Share Posted June 12, 2014 You don't have the boost control kit or even just the map sensor installed do you? Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310016 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 No I don't have either. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310018 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 Sorry what do you mean about the map sensor? I only have a afm it's not the d-jetro ecu. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310021 Share on other sites More sharing options...
jiffo Posted June 12, 2014 Share Posted June 12, 2014 Do you have the knock reading on "Peak Hold"? You're not going to register max knock numbers otherwise. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310030 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 Yeah on peak hold. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310031 Share on other sites More sharing options...
75coupe Posted June 12, 2014 Share Posted June 12, 2014 Knock Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310050 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 Also the light flash is alot slower than when it was knock previously. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310053 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 Doesn't the engine light flash when the knock is above 60 not 10. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310054 Share on other sites More sharing options...
MrRx7s3 Posted June 12, 2014 Author Share Posted June 12, 2014 Anyone. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310221 Share on other sites More sharing options...
89CAL Posted June 12, 2014 Share Posted June 12, 2014 It depends what the warning is set out. You can set it to go off at whatever you like The map sensor is for the boost control kit but does work without it. If you bring boost up on the hand controller and its got lines instead of a figure then you don't have the map sensor. I dont think you do but had to ask. I'm not even sure if it flashes the engine light anyway. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7310250 Share on other sites More sharing options...
MrRx7s3 Posted August 27, 2014 Author Share Posted August 27, 2014 Hey guys well it started again arhhh. Weird although I have noticed that it mainly does it in the rain??? At about 4000 rpm mainly in 2nd engine light flashes car feels like it just turned off and back on then I back off. I once thought fark it lets see what happens and it hesitates for a few milliseconds then goes fine, I'll attach a photo of my peak hold off my power FC if that helps at all. I'm thinking either clogged injectors or is my fuel pump getting weak? if you think it's the fuel pump how can I test that? Thanks for any help in advance. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7375447 Share on other sites More sharing options...
89CAL Posted August 27, 2014 Share Posted August 27, 2014 Your airflow is getting borderline out of range (high) Your injectors are borderline of reaching maximum Both may be within the warning set in the Power FC. Depends what the tuner has set them to Doesn't explain the problem with the drive from the car, but will explain the warning light I'd say. The Tuner may have set them at those levels, without FC-Edit to look at the settings then If it were me, I'd be getting a Z32 AFM and some bigger injectors, then trying to troubleshoot the problem, because looks like what you have now is not quite enough to do the job safely. It may be a problem with the AFM, and you may find that spending $200-$400 on a Z32 AFM might solve your problem anyway. Without more information though its hard to say for sure. It may be worth talking to your tuner about it so he can see the car and experience the problem Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7375469 Share on other sites More sharing options...
MrRx7s3 Posted August 27, 2014 Author Share Posted August 27, 2014 Yeah true, what trips me out though is that the car has been tuned like this for the past 2 years and now all of a sudden this is happening, I've tried 2 different AFM and 2 different o2 sensors just incase and same thing is happening, running the same boost and all, well I'm sooning aiming for my stage 2 upgrade, hopefully get near 300rwkw just stuck on which turbo to get, and which injectors, are the r34 injectors side feed or top feed? thanks. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7375490 Share on other sites More sharing options...
89CAL Posted August 27, 2014 Share Posted August 27, 2014 Lose the whole 'stage 1' upgrades, etc. Tune's dont always stay 100% perfect, in fact most of the time they dont. Differing temperatures for example will make a difference. Colder winter then normal for one As the engine wears it will probably make a difference as well It would be better to log data on a laptop and see exactly what the car is doing when the problem occurs. Hence why it would be a good idea to go see your tuner, see what he thinks. Becuase chances are he has seen it before Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7375511 Share on other sites More sharing options...
SargeRX8 Posted August 28, 2014 Share Posted August 28, 2014 What you can try do is disable the ECU from giving warnings if your AFM or injectors are at peak. What I would do next is have the control in the mode which lets you view the sensors and if the ECU triggers a warning have a passenger watch the screen closely to see if one of the triggers switches off. If the ECU is throwing an issue, it can be reported by the hand controller, whether it be a threshold limit or a component failure. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7376180 Share on other sites More sharing options...
MrRx7s3 Posted August 28, 2014 Author Share Posted August 28, 2014 Ahh k so put it in the sensors mode correct? And watch for one of the little circles to either come on or off yeah? It's not the light that bothers me I just don't want to blow anything - don't have the time or money for that atm. It just trips me out as to why it mainly happens when it's raining and why all of a sudden if you get where I'm coming from, and also that little jurk that I get when the engine light does flash and what causes that? I'm thinking maybe as a safety precaution it's like a Rev limiter. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7376211 Share on other sites More sharing options...
LTHLRB Posted August 28, 2014 Share Posted August 28, 2014 the engine light in my r33 flickers at times when im pushing past the 7,000rpm mainly in 3rd n 4th. Knock doesnt register any higher or go up when the light flashes, no engine damage or failures have happened and i have more than enough fuel and headroom with my setup. I've sort of learnt to ignore it and focus on knock readings Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7376223 Share on other sites More sharing options...
MrRx7s3 Posted August 28, 2014 Author Share Posted August 28, 2014 My knock levels never go past 20, engine light turns on at 60 for knock. Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7376225 Share on other sites More sharing options...
Ben C34 Posted August 28, 2014 Share Posted August 28, 2014 Could it be the cooler denser air is tripping the afm max voltage? Link to comment https://www.sau.com.au/forums/topic/444335-weird-engine-light-flashing-with-power-fc/#findComment-7376257 Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now