TiTAN Posted September 3, 2011 Share Posted September 3, 2011 As i was driving the car around this morning the engine died and i couldnt restart it, since getting it towed home i have done the following checks. I have checked and it is getting spark, the guts of the ignitor look fine The injectors are getting fuel to the rail and they are firing (removed the rail/injectors and cranked engine over, fuel pump does the pre crank prime too) Throttle position sensor is reading correctly, i can only assume the CAS is working correctly as spark and fuel are being triggered in the correct order. Fuses have all been checked and are all OK. Timing belt marks all line up but even skipping 2 teeth it would still start. Pressing the throttle to about 50% while cranking did get it started once, i moved the revs between 2000-3000 but as i was doing that it died after about 5 seconds of running (AFR was showing 11.4:1 at the time). I have no idea what on earth else it could be. Any ideas? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/ Share on other sites More sharing options...
Kinks Posted September 3, 2011 Share Posted September 3, 2011 Does pressing the throttle to 50% start it now? Or was that a one time thing. If it starts again under 50% throttle but dies when you shut the throttle your AAC valve may be stuck shut. Does the cranking sound normal to you (ie, lumpy.. like it's still getting good compression). Does it ever almost fire or is it just dead dead? Sounds like you've checked the basics pretty thoroughly.. Check the AFM connector if the ECU logs a fault there then the engine will run like a pile of poo and starting may be really difficult too. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998414 Share on other sites More sharing options...
RobertoB Posted September 3, 2011 Share Posted September 3, 2011 Engine? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998417 Share on other sites More sharing options...
D_I_F Posted September 3, 2011 Share Posted September 3, 2011 Buy a new car? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998468 Share on other sites More sharing options...
TiTAN Posted September 3, 2011 Author Share Posted September 3, 2011 Does pressing the throttle to 50% start it now? Or was that a one time thing. If it starts again under 50% throttle but dies when you shut the throttle your AAC valve may be stuck shut. Does the cranking sound normal to you (ie, lumpy.. like it's still getting good compression). Does it ever almost fire or is it just dead dead? Sounds like you've checked the basics pretty thoroughly.. Check the AFM connector if the ECU logs a fault there then the engine will run like a pile of poo and starting may be really difficult too. Even if the AAC valve is stuck shut i was driving when it initially cut out/stalled not stationary/idling and when it did start while holding the throttle open it also stalled with the throttle open not closed. It cranks normally, but doesnt fire/pop/splutter/anything. The ECU is MAP based so no AFM, MAP sensor is giving a signal to the ecu Engine? 25/30 but that shouldn't make any difference. Buy a new car? har har Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998503 Share on other sites More sharing options...
DVS JEZ Posted September 3, 2011 Share Posted September 3, 2011 Check all cooler pipes. Check spark plug condition Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998595 Share on other sites More sharing options...
blind_elk Posted September 3, 2011 Share Posted September 3, 2011 Have you considered the fuel filter might be blocked? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998626 Share on other sites More sharing options...
JonnoHR31 Posted September 3, 2011 Share Posted September 3, 2011 (edited) checked the map sensor readings to see if they're normal? as said, check the plugs aswell if you havent since last time it ran Edited September 3, 2011 by JonnoHR31 Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998689 Share on other sites More sharing options...
TiTAN Posted September 3, 2011 Author Share Posted September 3, 2011 all intake/cooler pipes are on and secure, i did check the spark plugs and they look fine (they are only 6 days old, as is the whole engine, setup had been working perfectly up until today). map sensor readings looked normal, but i can double check tomorrow. i checked and fuel flow is fine so unlikely to be the filter, pumped out 1L in a few of seconds of priming. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998712 Share on other sites More sharing options...
blind_elk Posted September 3, 2011 Share Posted September 3, 2011 What is the fuel pressure? Have you checked compression readings? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998748 Share on other sites More sharing options...
DVS JEZ Posted September 3, 2011 Share Posted September 3, 2011 Are u running a top timing beltcover? Check the cas hasnt snapped the shaft Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998825 Share on other sites More sharing options...
r33_racer Posted September 3, 2011 Share Posted September 3, 2011 Would the car start or run if the map sensor line had been cut or popped off? Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5998833 Share on other sites More sharing options...
TiTAN Posted September 4, 2011 Author Share Posted September 4, 2011 What is the fuel pressure? Have you checked compression readings? dont have the tools on hand to check those at the moment. Are u running a top timing beltcover? Check the cas hasnt snapped the shaft Yes i am, always have done. the half moons are still in place. Would the car start or run if the map sensor line had been cut or popped off? Checked the line from engine to ECU all still firmly attached, map readings go up and down if pressure/vac is applied to the engine side of the line and i also checked for leaks, line holds pressure fine. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5999218 Share on other sites More sharing options...
DVS JEZ Posted September 4, 2011 Share Posted September 4, 2011 Use a timing light and see if its sparking at the correct time. I had a cas shaft snap an still sparked etc but wasnt at the correct time. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5999380 Share on other sites More sharing options...
SargeRX8 Posted September 4, 2011 Share Posted September 4, 2011 I'm surprised you haven't fouled your spark plugs after that many failed attempts. My car died on my, tried so many different things and then noticed all the failed starts flooded my plugs. I would still see a spark but there was no way they would fire in the engine and my battery died trying. New plugs and it was fine. Just because you can see the spark outside the cylinder does not mean it well hold up when there is fuel in there and compression occurring. If the plug is could the spark won't last or seize to exist. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5999433 Share on other sites More sharing options...
TiTAN Posted September 4, 2011 Author Share Posted September 4, 2011 Use a timing light and see if its sparking at the correct time. I had a cas shaft snap an still sparked etc but wasnt at the correct time. As with the compression and fuel pressure tests i wont be able to do them until i can get my hands on the tools (hopefully i can borrow them monday night) I'm surprised you haven't fouled your spark plugs after that many failed attempts. My car died on my, tried so many different things and then noticed all the failed starts flooded my plugs. I would still see a spark but there was no way they would fire in the engine and my battery died trying. New plugs and it was fine. Just because you can see the spark outside the cylinder does not mean it well hold up when there is fuel in there and compression occurring. If the plug is could the spark won't last or seize to exist. Just tried different plugs with the same coil packs and then with different coil packs, no difference. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-5999717 Share on other sites More sharing options...
TiTAN Posted September 5, 2011 Author Share Posted September 5, 2011 What is the fuel pressure? Have you checked compression readings? Fuel pressure, when priming steady 45psi, when cranking 40psi Compression results. (cold and dry test) 1. 160 2. 175 3. 170 4. 160 5. 160 6. 160 Use a timing light and see if its sparking at the correct time. I had a cas shaft snap an still sparked etc but wasnt at the correct time. tried a timing light on it but it didnt seem compatible with the coilpack setup sparkplug would spark but no flash from the timing light. will hopefully borrow another cas on the weekend and test with that see if that gets it going. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-6001710 Share on other sites More sharing options...
OMGGTR Posted September 5, 2011 Share Posted September 5, 2011 put a high tension lead between the coil pack and the spark plug and attach ur timing light to that... also sounds like a timing issue :S or low fuel pressure but uve solved that .... im thinking air idle control valve try remove it pull it apart and clean it out with some solvent (evaporative) solution i dont know if they cause a non starting issue maby their cleaned for more of a hunting issue... try it anyway Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-6001767 Share on other sites More sharing options...
TiTAN Posted September 5, 2011 Author Share Posted September 5, 2011 put a high tension lead between the coil pack and the spark plug and attach ur timing light to that... also sounds like a timing issue :S or low fuel pressure but uve solved that .... im thinking air idle control valve try remove it pull it apart and clean it out with some solvent (evaporative) solution i dont know if they cause a non starting issue maby their cleaned for more of a hunting issue... try it anyway even with the throttle opened it doesn't start. which it would if it was just the idle control valve not working. as for the high tension lead into the coil, that never occured to me but at this point im happy to just wait untill i can get my hands on a known working cas and ignitor to test. Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-6001774 Share on other sites More sharing options...
Tangles Posted September 5, 2011 Share Posted September 5, 2011 compression test time. could very well be broken ringland(s). currently rebuiding my engine after experiencing this Link to comment https://www.sau.com.au/forums/topic/376091-engine-stalled-wont-start/#findComment-6001820 Share on other sites More sharing options...
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