V1 Ready to start, but. . .

[barichuk]

I think I have gotten it all together, but I am getting no response from the starter. I have jumped the fuel pump relay and it is good. I have lights (except for backup lights, not a major concern), and I have lights and messages on the dash. The messages are, in no particular order, 'engine power reduced', 'low fuel', 'power steering'. The warning lights are ABS, Tire Pressure, seat belt icon, and Brake. Brakes have been bled, pedal pressure is good, and the fluid bottle is full. What is my next step?

 

[r3drckt]

Have your 3 wires connected to the starter? Check your grounds are completely clear of paint and making bare metal contact.

 

[barichuk]

I had the starter working at one time. I cooked it trying to start the engine and got a new one. With help from the forum I am 99% sure it is wired right. Thanks for the suggestion.

 

[Ark :D]

"Power steering" message is indicative of lack of continuity on your tan/tan black data wires. Or perhaps your power steering isn't plugged in.

 

[Desert Sasqwatch]

"Power steering" message is indicative of lack of continuity on your tan/tan black data wires. Or perhaps your power steering isn't plugged in.

Is the computer smart enough to not let someone start the engine if the EPS is not working.

 

[ctuinstra]

Is the computer smart enough to not let someone start the engine if the EPS is not working.

When I was having trouble with HP Tuners locking up my ECM, that was the message I would always get. It's a communication issue.

You should retrace all of your tan and tan/black wires. Make sure there is nothing plugged into your OBDII port (just to make sure).

 

[barichuk]

Power steering is plugged in. Where do I begin/end tracing data wires?

 

[Ark :D]

They start at the OBDII port, then to the power steering, then to the BCM, and finally to the ECM. They also change color to brown and brown/white between the power steering and BCM, then back to tan and tan/black.

 

[Lonny]

I think you may have something plugged in wrong near your fusebox

There are three 8 pin connectors that go to the throttle body, ignition, and body harness that are the same connector. Make sure you have the correct ones plugged into the correct spot.

If the data is not communicating it can have a power steering message. If the throttle is not communicating it can have an engine power-reduced message.

Does the throttle body respond when you depress the accelerator pedal?

The backup light also goes through one of these connectors.

The engine harness should connect to the ignition harness as shown.

 

[ctuinstra]

I forgot about that one. On our first start, I tried igniting the headlight instead of the spark plugs! Lucky I remember seeing the two connections as being the same moments earlier and switched the around and VAROOM.

 

[barichuk]

I think you may have something plugged in wrong near your fusebox

There are three 8 pin connectors that go to the throttle body, ignition, and body harness that are the same connector. Make sure you have the correct ones plugged into the correct spot.

If the data is not communicating it can have a power steering message. If the throttle is not communicating it can have an engine power-reduced message.

Does the throttle body respond when you depress the accelerator pedal?

The backup light also goes through one of these connectors.

The engine harness should connect to the ignition harness as shown.

View attachment 21051

The throttle body has not ever responded.

 

[barichuk]

The guy at O'Reilly's suggested I send the ECM and BCM and have the security codes erased. Is this a good idea?

 

[Ark :D]

The guy at O'Reilly's suggested I send the ECM and BCM and have the security codes erased. Is this a good idea?

No, I don't think it is. I'm not even sure what "erasing security codes" is supposed to mean.

If your throttle body does not respond when you press the gas pedal and your gauge display shows a power steering message, the cause is almost definitely with your tan data wires. It could be a wiring issue, or it could be what Lonny said.

 

[ctuinstra]

I agree with Ark. They don't even know what they are talking about and they are just spouting things to "help" you and get you out of the store. You could disable VATS (depending on the year) but that has nothing to do with your issue. You issue is with the data communication, or lack there of.

 

[barichuk]

I think you may have something plugged in wrong near your fusebox

There are three 8 pin connectors that go to the throttle body, ignition, and body harness that are the same connector. Make sure you have the correct ones plugged into the correct spot.

If the data is not communicating it can have a power steering message. If the throttle is not communicating it can have an engine power-reduced message.

Does the throttle body respond when you depress the accelerator pedal?

The backup light also goes through one of these connectors.

The engine harness should connect to the ignition harness as shown.

View attachment 21051

Lonny, I can't identify the location of this plug, and I see nothing unplugged that I haven't identified. Can you point me specifically to the throttle body, ignition, and body harness plugs you are talking about?

 

[ctuinstra]

Lonny, I can't identify the location of this plug, and I see nothing unplugged that I haven't identified. Can you point me specifically to the throttle body, ignition, and body harness plugs you are talking about?

If you start at the coil packs on top of the engine, there is a harness that runs off of them. The connector of this harness should have some purple on it like in the photo from Lonny. This connector is the exact same as the headlight harness that should be floating around the same area somewhere. See if you can match up the wiring colors to both sides of the connector to determine if you have the proper connectors and plugs into the correct one. Not every wire color may match perfectly.

 

[Ross]

Here is a few pictures of the 3 identical 8 pin purple connectors.
Basically, make sure the wires on each side of the connector are the same colors.

Here is the GM high speed LAN wires (tan wires) wiring for my 06 SS SC donor. The wire colors are the same as your 07, pin numbers might be different on the connectors.

 

[barichuk]

What I am most curious (concerned) about is that I had the starter working. I ovecranked the engine and 'cooked' the starter and had to replace it. So why is it not working now?

 

[Ark :D]

You should avoid obfuscating one problem with another. If your throttle body has not ever responded to gas pedal presses, then you still have a data wire issue, regardless of anything starter-related. Your starter will not crank by key if the data is not flowing.

You could make sure your car is in Park (and elevate the back wheels off the ground for added safety), unplug the single-pole connector from the starter, and apply 12v directly to the starter where the connector was plugged in. This will crank your starter and verify that starter is fine (or confirm it is dead).

 

[barichuk]

You should avoid obfuscating one problem with another. If your throttle body has not ever responded to gas pedal presses, then you still have a data wire issue, regardless of anything starter-related. Your starter will not crank by key if the data is not flowing.

You could make sure your car is in Park (and elevate the back wheels off the ground for added safety), unplug the single-pole connector from the starter, and apply 12v directly to the starter where the connector was plugged in. This will crank your starter and verify that starter is fine (or confirm it is dead).

You should avoid obfuscating one problem with another. If your throttle body has not ever responded to gas pedal presses, then you still have a data wire issue, regardless of anything starter-related. Your starter will not crank by key if the data is not flowing.

You could make sure your car is in Park (and elevate the back wheels off the ground for added safety), unplug the single-pole connector from the starter, and apply 12v directly to the starter where the connector was plugged in. This will crank your starter and verify that starter is fine (or confirm it is dead).

That's what is confusing me. Before the first starter died I did have it cranking by key which makes me wonder if it is something besides the data wire.