Quick wiring question
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Quick wiring question
Okay, 1998 Camaro engine and wiring harness. It's in its new home, but other than a quick cough it's not firing.
I don't have a tach hooked up, but I do have an OBD-II scanner that displays real-time data. I'm showing 0 rpm when cranking. I've checked the wiring for both the cam sensor (back of the engine) and the crank sensor (by the starter). The engine was running when I pulled it from the Camaro, so I have no reason to doubt the sensors.
Should I see rpm on the OBD-II scanner when cranking? I can see airflow on the MAF. Does the tach need to be connected in order for the PCM to fire?
There is a large sensor right beside the cam sensor that's not plugged in. I'm not 100% sure what it is. It takes two wires.
Thanks!
I don't have a tach hooked up, but I do have an OBD-II scanner that displays real-time data. I'm showing 0 rpm when cranking. I've checked the wiring for both the cam sensor (back of the engine) and the crank sensor (by the starter). The engine was running when I pulled it from the Camaro, so I have no reason to doubt the sensors.
Should I see rpm on the OBD-II scanner when cranking? I can see airflow on the MAF. Does the tach need to be connected in order for the PCM to fire?
There is a large sensor right beside the cam sensor that's not plugged in. I'm not 100% sure what it is. It takes two wires.
Thanks!
Last edited by Keith Tanner; 10-06-2010 at 08:42 PM.
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Ah, of course. Thank you. The answer, of course, is "no". That makes perfect sense.
I have access to HPTuners through work. I'll turn the VATS off tomorrow. And thanks for the reminder on the oil pressure sender - I'm going to convert to a mechanical gauge and I have the adapter. I just forgot.
I have access to HPTuners through work. I'll turn the VATS off tomorrow. And thanks for the reminder on the oil pressure sender - I'm going to convert to a mechanical gauge and I have the adapter. I just forgot.
Last edited by Keith Tanner; 10-06-2010 at 09:27 PM.
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A final followup: it worked! With the VATS turned off, the engine fired right up. Thanks for the quick reply, ls1nova71.
An interesting note - most of the reports I've seen of VATS interference had the engine starting and immediately dying. In my case, it wouldn't even get that far.
An interesting note - most of the reports I've seen of VATS interference had the engine starting and immediately dying. In my case, it wouldn't even get that far.