NathanB Member 136 Member For: 11y 8m 5d Gender: Male Location: Melbourne Posted 15/07/17 03:18 AM Share Posted 15/07/17 03:18 AM Long story short but symptoms I've got at he moment are; taking a long time to crank and then start(Note that the battery condition is confirmed good, and fuel pump is confirmed priming and running)Under any positive boost or load breaks down and sounds like it's pulling timing etc as if it has a bad oxy sensor or fuel pressure. My xcal4 doesn't show any dtc codes but I have an obd2 adapter I am going to chuck on that shows more pids which I will check tonight. Car idles normally and will rev ok until load or boost is created. I had a similar issue on my s14 a while back and it turned out to be an oxy sensor. Is there any basic troubleshooting I can do in terms of vacuum leaks or plug/unplug that I can perform that would be common practice. At work today still so will try anything once I get it home. I feel like it's potentially a boost leak or vacuum hose that is perished etc. as it used to do this under load in 3rd Gear at low rpm. So I don't think it's a major issue. I have a second car so not afraid to do some diving to try and resolve it. Also note this happens under either low throttle + load or wot and boost/load. Cheers for any tips in advance. Nathan Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,181 Member For: 16y 9m 20d Gender: Male Location: Melbourne Posted 15/07/17 03:19 AM Share Posted 15/07/17 03:19 AM sounds like coils and/or plugs. take 'em out and check for corrosion and replace as necessary. Link to comment Share on other sites More sharing options...
NathanB Member 136 Member For: 11y 8m 5d Gender: Male Location: Melbourne Posted 15/07/17 03:20 AM Author Share Posted 15/07/17 03:20 AM Yeah might be a new set of coils. Meant to have been a new set when I purchased the car only 1year ago. Also plugs are less than 2000km old and re gapped by tuner 2 weeks ago as part of tune. I'll check the coils though Appreciate the help though Keith. You always reply so quickly and with great help. Should note tuner is not open today so I didn't have a chance to chat to them about this. But may call them monday Link to comment Share on other sites More sharing options...
NathanB Member 136 Member For: 11y 8m 5d Gender: Male Location: Melbourne Posted 16/07/17 09:10 AM Author Share Posted 16/07/17 09:10 AM Here's something interesting. My obd scanner picked up code p2105 which is throttle body motor error. Weird Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,181 Member For: 16y 9m 20d Gender: Male Location: Melbourne Posted 16/07/17 09:11 AM Share Posted 16/07/17 09:11 AM mm... also clean the intake tract to the throttle body and the throttle body. Link to comment Share on other sites More sharing options...
NathanB Member 136 Member For: 11y 8m 5d Gender: Male Location: Melbourne Posted 16/07/17 09:15 AM Author Share Posted 16/07/17 09:15 AM Yeah gonna pull the connectors off and give them a clean too etc etc. cleaned the throttle body last service too when I did my air filter. Do you think it could have thrown that error when it was adjusting "torque" output through throttle body and timing etc when it ran into a fuel issue etc Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,181 Member For: 16y 9m 20d Gender: Male Location: Melbourne Posted 16/07/17 09:17 AM Share Posted 16/07/17 09:17 AM it's possible... clear the code and if it comes straight back you know it isn't caused by something else. 1 Link to comment Share on other sites More sharing options...
NathanB Member 136 Member For: 11y 8m 5d Gender: Male Location: Melbourne Posted 17/07/17 12:46 AM Author Share Posted 17/07/17 12:46 AM Problem found and diagnosed (over the phone at first) by Simon and the guys at nizpro. He told me before I said yes to an upgraded in tank pump that this is the very reason why he doesn't like them. He subsequently replaced the hose with a much better quality gates submersible version free of charge. Car is running like a dream now. Photos etc etcAnd having worked at an auto parts store this stuff feels like really crappy low pressure external fuel line. Even though it has the high pressure braiding and submersible rating etc. it's very very soft. Odd. Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 3m 3d Gender: Male Location: Perth Posted 17/07/17 02:05 AM Share Posted 17/07/17 02:05 AM (edited) That hose was kinked. Don't blame the product , blame the install and installer. This hose is is used for a reason. Edited 17/07/17 02:06 AM by arronm Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 3d Gender: Male Location: @ my laptop Posted 18/07/17 01:39 AM Share Posted 18/07/17 01:39 AM That hose has only been readily available for a short time, before that there was no real choice but to use submersible intank hose Link to comment Share on other sites More sharing options...
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