Dave222 Posted February 8, 2008 Share Posted February 8, 2008 Quick questions, would you expect to see a Fuel Injector Pulse value on the fuel page with the ignition switch on but not in the start position ?. Mine is showing a value of 3225uS. Secondly what do I need to select to check that the cam & crank sensors are working and what would you expect to see when cranking the engine? Cheers Link to comment Share on other sites More sharing options...
Wez Posted February 8, 2008 Share Posted February 8, 2008 Do you mean the fuel map? Link to comment Share on other sites More sharing options...
Dave222 Posted February 8, 2008 Author Share Posted February 8, 2008 Yes on my fuel map page the parameters box shows the value of 3225uS against all 6 injectors. Link to comment Share on other sites More sharing options...
Wez Posted February 8, 2008 Share Posted February 8, 2008 Yes on my fuel map page the parameters box shows the value of 3225uS against all 6 injectors. The value will change depending on where you are in the fuel map but no fuel will be injected until the engine is running. Link to comment Share on other sites More sharing options...
Dave222 Posted February 8, 2008 Author Share Posted February 8, 2008 Cheers Wez, what about my second question can you help Cheers Dave Link to comment Share on other sites More sharing options...
Wez Posted February 8, 2008 Share Posted February 8, 2008 Before you attempt to start have you setup the throttle and loaded a map to suite your setup? I know AEM say its plug and play when really it should read plug compatible. Link to comment Share on other sites More sharing options...
Dave222 Posted February 8, 2008 Author Share Posted February 8, 2008 Wez, yes I have had the car running on a "base" map but then I suffered a blown head gasket so I have stripped the engine and rebuilt it but it wouldn't run properly so I've been over the mechanical bits and they are fine so now I'm just trying to check the electrical / ECU bits but I'm not really familiar with the workings of the ECU in particular. Your comments are much appreciated as I need all the help I can get!! Link to comment Share on other sites More sharing options...
Muffleman Posted February 8, 2008 Share Posted February 8, 2008 I know AEM say its plug and play when really it should read plug compatible. VERY true If you have uploaded the AEM basemap for the Supra, then the crank and cam sensors wont need setting as they will be set to the stock sensor. Link to comment Share on other sites More sharing options...
TLicense Posted February 8, 2008 Share Posted February 8, 2008 I can't agree with Wes enough, you need to read, read and re-read the manual until you understand. Anything in it that you're not sure of, ask..... Yes when the ignition is on, but the engine is not started, you should get a reading on the injector pulses. It doesn't mean that the injectors are open and flowing fuel into the engine, as the ECU times the opening of the injectors depending on the crank trigger position. With the engine not turning there is not crank trigger so the injectors don't open. When cranking the engine the ECU checks the crank trigger against the camshaft trigger. It basically checks the signal patterns to make sure the signals are real signals and not spurious. So you need to make sure that you are getting "stat sync". From the questions you're asking, it almost sounds like you know what you're looking for, so I would suggest reading through the manual to familiarize yourself with the software. Hope that helps. Link to comment Share on other sites More sharing options...
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