Smithy Posted December 23, 2011 Share Posted December 23, 2011 Result - its firing injectors and electric fan. Its turning over, firing injectors and still has same code 21 error on ECU. Any more ideas please?. Is the electric fan coming on when you turn the ignition on and try to start? The code will remain for so many starts until cleared by disconnecting the battery for a while or reset of the ECU. smithy Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 fan doesnt usually come on when using ignition. Just when spinning the cas wheel. Quote Link to comment Share on other sites More sharing options...
Smithy Posted December 23, 2011 Share Posted December 23, 2011 Weird shit lol IF it comes on when trying to start the car now it points to something else. However constantly trying to start a cold zed can flood it, once flooded it don't wanna know. So a quick test, The wedge shaped small fuse box by the brake booster drivers side, pull out the wee Green strange fuse for the fuel pump. With good strong power in the battery, try to start it 5 or 6 times, if it's flooded it should start about the 6th go or at very least splutter to almost start. Oh and have seen previously known working series 1 PTU's work on 1 car, swapped over and didn't wanna know on the other car and then never worked again. smithy Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 Will try that in morning. Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 Just been out to try starting without fuse in. Still no go. Never have i been fed up with my z before, but now im getting proper fed up with it. 4yrs of work and its just sitting there refusing to play.... Quote Link to comment Share on other sites More sharing options...
Smithy Posted December 23, 2011 Share Posted December 23, 2011 Don't worry mate you'll get there, eventually! If your happy the right fuse is out and the starting sounded no nearer to fire, then you should be able to rule out flooding, however it is easy to happen in these situations so bare that in mind. The PTU can still be a fault even though you tried a spare one, it's happened many times before. In the link i sent you was how to re set the ECU, i think? if so do that tomorow and see if your still getting the same error code. If the ECU itself was goosed you would normally have the electric fan on on ignition and all warning lights staying on, however another 5 minute job to swap over and try. As previously suggested, post up a couple of fairly close up engine bay shots so we can see if alls well as it should be. smithy Quote Link to comment Share on other sites More sharing options...
mantav8 Posted December 23, 2011 Share Posted December 23, 2011 Have you checked for a spark Dave?-check all 6 to rule out a bad coil/plug etc.If none are sparking then deffo ignition fault. Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 There all sparking mate. Although will keep re-checking them. All plugs have been gapped and re cleaned again today so checked for spark then. Quote Link to comment Share on other sites More sharing options...
mantav8 Posted December 23, 2011 Share Posted December 23, 2011 So, you have fuel,sparks and set the Timing right? Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 as far as i can tell ye. Mikey bean did timing belt yesterday. Checked plugs today and all sparking. Released fuel pipe from filter and fuel shot out. So can only assume that its getting fuel. Quote Link to comment Share on other sites More sharing options...
mantav8 Posted December 23, 2011 Share Posted December 23, 2011 No mate,assume you have pressure,might not be injecting!-can you smell fuel in the bores? Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 Will recheck in morning. What could be the causes of it not getting through? Quote Link to comment Share on other sites More sharing options...
mantav8 Posted December 23, 2011 Share Posted December 23, 2011 After 4 years mate,injectors could be fubar/clogged,connectors (I know Mikey cleaned em' but could still be bad.Have you rebuilt this Engine? Quote Link to comment Share on other sites More sharing options...
Car.Mad Posted December 23, 2011 Share Posted December 23, 2011 what about faulty fuel dampers?? Quote Link to comment Share on other sites More sharing options...
vodkashots Posted December 23, 2011 Share Posted December 23, 2011 with out flow testing the injectors you wont be able to tell, they might click but doesnt mean its putting fuel into the cylinder, if its firing and fuels getting in to the cylinders you will smell a strong fuel smell from the exhausts as its not burning off and being pushed down the pipes. Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 After 4 years mate,injectors could be fubar/clogged,connectors (I know Mikey cleaned em' but could still be bad.Have you rebuilt this Engine? Yeah, ive rebuilt it. Quote Link to comment Share on other sites More sharing options...
mantav8 Posted December 23, 2011 Share Posted December 23, 2011 Yeah, ive rebuilt it. Ahh Right,as the only other basic to run is Compression! (I take it it's all good) Have you had the ECU off at all?-could be worth checking the Plugs on right,Had that on Boldy's and it wouldn't run! Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 Will check again to make sure. ECU had been on back seat for last 4yrs. Quote Link to comment Share on other sites More sharing options...
davezx Posted December 23, 2011 Author Share Posted December 23, 2011 what about faulty fuel dampers?? I have some spares so will change them and try it. Quote Link to comment Share on other sites More sharing options...
davezx Posted December 24, 2011 Author Share Posted December 24, 2011 Been back on the elusive problem today. Checked all i can and now only getting code 55. Which is no malfunctions. Yet still not starting. There is fuel getting into the fuel rail, took a spark out again and its wet, so fuel must be getting through injectors. Quote Link to comment Share on other sites More sharing options...
Guest HollowPoint Posted December 24, 2011 Share Posted December 24, 2011 Take the spark plugs out, take the battery off and whack it on charge, enjoy Christmas day, then on Monday, put the spark plugs back in, put the battery back in and try again. If you've got code 55 it's not showing any errors, if you've seen a wet plug, it's getting fuel, you've verified the spark plugs are sparking etc. Only thing left, is to assume it's either flooded and/or low on battery power. Taking the plugs out should let it evap off out of the cylinders and charging the battery overnight ensures that it's fully charged on Monday, then give it another try. Quote Link to comment Share on other sites More sharing options...
vodkashots Posted December 24, 2011 Share Posted December 24, 2011 Like I said before, there is fuel pressure but nothing been injected. After several attempts turning it over I removed a plug. It was bone dry and still clean. No sign of fuel or combustion of any type. Im confidant the issue here is the fueling. Its just a case of finding its cause. Sounds like injectors not firing Been back on the elusive problem today. Checked all i can and now only getting code 55. Which is no malfunctions. Yet still not starting. There is fuel getting into the fuel rail, took a spark out again and its wet, so fuel must be getting through injectors. Could be a false positive matey, or you have found the only injector thats firing. Quote Link to comment Share on other sites More sharing options...
MarkDerby Posted December 24, 2011 Share Posted December 24, 2011 the fuel lines havent been off have they and been put back on the wrong way ... ? Quote Link to comment Share on other sites More sharing options...
davezx Posted December 24, 2011 Author Share Posted December 24, 2011 There the same way as on mikey beans car so should be correct. Drivers side invound,feed, passanger side return feed. Quote Link to comment Share on other sites More sharing options...
vodkashots Posted December 24, 2011 Share Posted December 24, 2011 There the same way as on mikey beans car so should be correct. Drivers side invound,feed, passanger side return feed. Well if there is fuel getting to the fuel rail, then the most logical step is the injectors as thats the only thing from the fuel rail that would be stopping the fuel getting into the cylinders. Quote Link to comment Share on other sites More sharing options...
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