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Dexter
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Post subject: Engine not firing LS2  Posted: Fri Mar 07, 2008 6:53 pm |
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| Cool Newbie |
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Joined: Thu May 10, 2007 12:23 pm
Posts: 26
Location: Günzburg
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Hey guys
I swapped a LS2 from a 05 GTO in my RX7 and have now completed the work. The problem is the engine just wont fire up. It will crank happily but I get no fuel and no spark. My wiring is done right I checked it many times and I get the switched constant 12V to the coils and the injectors its the pulsed signal that is totally lacking. I have Aeroforcetech OBD2 gauges hooked up to the OBD2 port and they show my all the engine stats. I get an RPM signal on cranking and it does some stuff with the fuel tables as I see it. The gauges also have a option to show DTCs but no faults show up.
Fuel Pump gets turned on an primered by the ECU and the fuel pressure is right at 58PSI.
Does anybody have an idea what it could be? I double checked on everything. Engine and is PCM are perfectly grounded. The switched and constant 12V sources are clean and all fused.
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Roy
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Post subject: Re: Engine not firing LS2 Posted: Fri Mar 07, 2008 9:30 pm |
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Joined: Sun May 27, 2001 2:52 pm
Posts: 5556
Location: Mehlingen,Rhineland Pfalz, Deutschland
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jeejee
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Post subject: Re: Engine not firing LS2 Posted: Fri Apr 25, 2008 9:48 am |
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Joined: Fri Sep 09, 2005 10:02 am
Posts: 658
Location: the Netherlands
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( Very Annoing Throttle Sensor) VATS ?
_________________
 
if you're not breaking parts , you are not making enough power
When in doubt, increase boost !
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Chevroletfreak
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Post subject: Re: Engine not firing LS2 Posted: Fri Apr 25, 2008 10:35 am |
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| No Life |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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I don't think it is VATS if the fuel pump is priming. I will have to look at my manual to confirm though.
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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Kentonius
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Post subject: Re: Engine not firing LS2 Posted: Tue Apr 29, 2008 11:19 am |
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| Fast Newbie |
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Joined: Tue Jul 24, 2007 2:21 pm
Posts: 54
Location: Stuttgart, Germany
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Hey all -
It was VATS... he got it cleared with HP Tuners and is running... but now waiting on the car back from the paint shop.
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jeejee
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Post subject: Re: Engine not firing LS2 Posted: Tue May 06, 2008 7:36 pm |
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Joined: Fri Sep 09, 2005 10:02 am
Posts: 658
Location: the Netherlands
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Chevroletfreak
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Post subject: Re: Engine not firing LS2 Posted: Tue May 06, 2008 8:25 pm |
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| No Life |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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Vehicle Anti Theft System
If the key resistance is not recognized by the VATS module, the starter and fuel pump are disabled for 10 minutes.
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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Chevroletfreak
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Post subject: Re: Engine not firing LS2 Posted: Tue May 06, 2008 8:26 pm |
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| No Life |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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How did HP Tuners clear a VATS problem though? Usually you have to clean the cylinder contacts to correct it.
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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Garry
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Post subject: Re: Engine not firing LS2 Posted: Wed May 07, 2008 6:47 am |
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Joined: Sat May 26, 2001 9:59 pm
Posts: 7823
Location: Bad Hersfeld, Germany
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I guess what he meant is the VATS was disabled in the PCM ... in EFILive it's G1201 and G0801 ...
_________________
Garry Glendown * '99 Firehawk Convertible
"Horsepower is how fast you hit the wall and torque is how far you take the wall with you."
"Speed doesn't kill - suddenly becoming stationary on the other hand ..."
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Chevroletfreak
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Post subject: Re: Engine not firing LS2 Posted: Wed May 07, 2008 9:26 am |
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| No Life |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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Ahhh.
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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