Those codes are all related to the 02's which should not cause a no start. For all we know your trying to run an engine that is 24x with 58x cam and crank sensors or that the VATS was not disabled properly or that your wiring is wrong or you have a bad connection. The reader should tell you if you do not have a crank or cam signal though.

 

it's what send spark to your coils. Could be malfunction and not sending any spark or not enough spark. Typical issue with LS engines. Not saying it's the cure but wouldn't hurt to change out.

 

The reader has been able to tell me the rpms when turning over, does it take this information from the crank sensor, cam sensor, or both?

This is the vin of the computer is 3GCEK14T46G160011

The cam was replaced with a stock cam from Chevy as the old one had grooves worn from the lifters.

I may have a picture of the cam and crank sprockets somewhere if that would help.

 

If you didn't have a crank or cam signal you'd be getting P0335 and P0340 codes.

24X systems have black cam and crank sensors and the 58x's are gray. By pulling the crank sensor which is located on the passenger side of the engine block you can see the reluctor ring on the crank.

 

Looks like I've got the 24.

So now I should go and check and make sure my sensor is the right color?

 

Question. The engine has pretty consistently fired on the first cylinder, but then would continue to just crank. Sometimes if I continue to crank it, it would randomly fire on a cylinder.

Would this be an indication of injectors firing in "batch mode"?

 

I'm voting VATS also. Are you 100% sure you lined up the dots on the timing chain install. What harness are you using?

 

IDK..Question: Did the engine harness and ECM come with your engine or did you source these at different times? Certainly not like the golden days when you could bring No. 1 up to TDC on the compression stroke, drop in the distributor and wire the engine to it's firing order and then provide it fuel and have a running engine. Something is not right somewhere in the mix and that will have to be sorted out. Perhaps the harness does not match the ECM or certain connectors have been removed from the harness or the wires on the harness aren't pinned properly for the ECM you're using.

Electronics for LS engines are over my head which is why you want to make sure that you're getting the correct harness and ECM for the engine. You have a crank sensor a camshaft sensor, MAP sensor, TPS sensor, IAC valve, MAF sensors, temp sensor, O2 sensors, basically a plug on the harness for everything including the transmission and when you plug it into the ECM those pin outs should match.

 

99%. I feel like they may have been off by 5* in opposite directions so that when they rotated, they would align. I'm very **** about these things so I'm probably making a big deal about nothing that someone else may not see as a big deal.

Let's be clear hear, the engine has ran before, so I don't see how it could be vats.I sent my computer to the guy at lt1 swap.

I'm using the harness from Novak adapters. They specialize in the jeep swaps.

 

The gas pedal, tcm, throttle body, and ecm are from a 2006 Chevy Silverado. The harness is from a 2005 GMC Sierra. I spoke with Novak and they said there should not be an issue between the two.

I have noticed one difference, the 02 sensor plugs between the two years are different. Other than that, everything plugged up fine.

 

you stated it ran briefly then not. Exact symptoms of the VATS not deleted. Not saying it is not something else but that's the first thing I thought of when you described it.

 

okay good deal. I appreciate any and all help as this is my first swap.

This a video of it running, would it run for this long if vats were still programmed?

 

Close to half a minute. Longer than VATS allows... I hope you find the solution..

 

I'm running to the exhaust shop where the jeep is at to see if I can get any more codes off it it.

I did have a MAF code about a year or so ago, but the maf was just sitting in the intake and was not properly seated. I had to get a rubber ring to upsize it to 4". Code p0101.

I cleared the code and it has not come back.

 

Thank you. I have requested directions from Novak on how to hook up the wiring harness in hopes I can run through and verify everything is setup correct. I'm confident it is, but I'm at a loss and am ready to get this thing going.

Is there a program I can buy to actively monitor the engine in a pretty in depth manner? Like will show me when injectors are firing and when spark plugs are firing? Just so I can verify they are firing?

Would that be the best way?

One day I ended up removing the fuek rail and put paper towels under the injectors to ensure they are firing and they are. But of course I can only tell if they fired once because once the paper towel is wet under the injector... It's wet. Lol
Does the pcm send a ground signal to the coil pack to fire connector similar to the injector?

 

We WILL figure this out and we WILL get it running.

 

When you do PLEASE share the knowledge so others who are faced with this conundrum can get answers!

 

Of course! Have you been facing the same problem?

 

No I haven't but I am working on a build where I'm swapping an LS V-8 into a V-6 car. This isn't my first rodeo with LS engines or the 4th Gen F-bodies but I bought an engine harness from an 01 Camaro 6-speed car and an ECM from a 2002 Camaro Z28 automatic car and I'm in the process of swapping the V6 fuse block and wiring harness with the V8 one. When I built my 427 the VATS didn't have to be deleted or disabled because everything matched the car. I'm thinking that it will need to be done on this build though since the ECM is not the one that came with the car originally. Still not sure why I couldn't use the ECM that came with the car originally other than it was used for a 3800 Series2 V6 engine.

 

No new codes, I did have one pop up about the gas pedal being disconnected, but it's because I was checking the fuses for power.

I do have old gas in it, I'll somehow need to siphon the gas out and put new gas in. It's only got about two gallons and the tank is 19 gallons. If I fill the tank, do you think it will dilute the older gas enough?