LS1 start up procedure?
Thread Starter
Staging Lane
Joined: Jul 2009
Posts: 62
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LS1 start up procedure? Did and 98 LS1 install im my chevelle with a standalone harness. Is there a specific start up procedure I must follow for the initial start? I have primed the fuel system and oil.....
I just turned the key and on 1st crank it fired up.. If you have primed the oil system, you should be ready to go..
How did you prime the oil system ? I know it can be done, but just wondering how you did it ?
How did you prime the oil system ? I know it can be done, but just wondering how you did it ?
Thread Starter
Staging Lane
Joined: Jul 2009
Posts: 62
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Well, I just did it the old way... I filled the filter with oil and when i put on the pump, I used assembly lube and on the bearings. Then unplugged the coil packs and cranked it till I got pressure. I used a mechanical gauge. I havnet tried to fire it yet. Waiting for my O2 sensors to come.
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Thread Starter
Staging Lane
Joined: Jul 2009
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Ya I used a lead that is only hot in key start/run position, I had the ecm tuned by waitformeperformance. till not running...
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same problem i am having that same problem. i turn the key in ignition and the motor semms like it very close to cranking but it just doesnt. im no technician but a few friends have narrowed this problem to the crank position sensor. they say i must reflash it or something. the company that i bouhgt the ecm, tac, pedal, and harness from says it the tac module. the r not compatible. they r sending me a new one next week. and how do you wire it to hot/run. i wired my wiring harness (2 lines) to hot and the (4 lines) to igntion. when you turn the key they recieve power. right? i used a test light to find these sources.
Thread Starter
Staging Lane
Joined: Jul 2009
Posts: 62
Likes: 0
i am having that same problem. i turn the key in ignition and the motor semms like it very close to cranking but it just doesnt. im no technician but a few friends have narrowed this problem to the crank position sensor. they say i must reflash it or something. the company that i bouhgt the ecm, tac, pedal, and harness from says it the tac module. the r not compatible. they r sending me a new one next week. and how do you wire it to hot/run. i wired my wiring harness (2 lines) to hot and the (4 lines) to igntion. when you turn the key they recieve power. right? i used a test light to find these sources.
Thread Starter
Staging Lane
Joined: Jul 2009
Posts: 62
Likes: 0
Well good news, got it started. I used a different source for the ignition lead. Used a heavier gauge wire. Starts and runs fine, just having an idle issue. When I hit the throttle, and it comes back to idle, it dies....? any takers? and now I have a squeal coming from the front of the engine.. aaahhhhhh. pulling my hair out..
Thread Starter
Staging Lane
Joined: Jul 2009
Posts: 62
Likes: 0
4L60E, GMP Hot cam, bbk intake and TB and yes the ecm was tuned for the cam. Its weird, it idled fine when it first fired. but now it doesnt fire unless I have the throttle open part way, and when I let off it dies... the MAL light isnt on, no trouble code either
Launching!
Joined: Sep 2008
Posts: 234
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From: Ashland,VA
sometimes the ecm has to learn the IAC position. Some of them wont do it until a certain amount of run time or a certain vehicle speed like 35 mph for a certain distance. That could be the cause of your problem. Even some stock ls1 cars do that after battery replacement. worth a shot i think.
