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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 01-20-2015, 04:26 AM   #31
laurentj23
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Blown ignition fuse. But it still wont fire up. I have to use obd2 reader and see whats going on.
Fuel pressure at 55
Sparks present on the plugs
Havent connected the maf yet but from reading around, it shldnt prevents it from not firing up. Ecu has been flashed , so i know that vats has been removed...
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Old 01-20-2015, 02:10 PM   #32
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Blown ignition fuse. But it still wont fire up. I have to use obd2 reader and see whats going on.
Fuel pressure at 55
Sparks present on the plugs
Havent connected the maf yet but from reading around, it shldnt prevents it from not firing up. Ecu has been flashed , so i know that vats has been removed...
it will fire without a maf but won't stay running or it will run like shit if it does

do you have HP tuners ? its a wise investment you can pick it up over on ls1 tech for $350 used
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Old 01-20-2015, 03:22 PM   #33
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it will fire without a maf but won't stay running or it will run like shit if it does

do you have HP tuners ? its a wise investment you can pick it up over on ls1 tech for $350 used
So maf sensor is not the issue? It wont even start at all. I dont think my crank sensor is bad.
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Old 01-20-2015, 03:56 PM   #34
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So maf sensor is not the issue? It wont even start at all. I dont think my crank sensor is bad.
I'm pretty sure if your crank sensor is bad the fuel pump will not turn on so if you have fuel pressure i don't think thats the case

the maf does matter unless the car is on speed density O2 sensors matter to
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Old 01-20-2015, 05:47 PM   #35
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I'm pretty sure if your crank sensor is bad the fuel pump will not turn on so if you have fuel pressure i don't think thats the case

the maf does matter unless the car is on speed density O2 sensors matter to
Ok. Im using 5 pin ls6 maf so i guess both iat and maf are not connected since 5 pin uses those.
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Old 01-20-2015, 05:52 PM   #36
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Ok. Im using 5 pin ls6 maf so i guess both iat and maf are not connected since 5 pin uses those.
i ment to say crank sensor isn't bad

if your running a ls6 maf on a ls1 pcm you need to calibrate it

you really should invest in HP tuners hands down best software I've ever used very easy to use also

you can also scan for codes and much much more it helped me a lot
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Old 01-23-2015, 04:59 AM   #37
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Ok. Got the obd2 codes and it came out as map sensor low voltage. That map sensor is new. Cam sensor . Plugged the maf sensor. Which turned out that the pigtail they gave me is for ls3 6.2l . Thats after buying 3 mafs! Getting there
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Old 01-23-2015, 08:48 AM   #38
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good work ! keep pluggin away !
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