Bought an 06 GT V8 and it's in limp mode
Thread Starter
Joined: Aug 2024
Posts: 13
From: FL
Most of those codes relate to the throttle body actuator. If you've repaired the damaged wiring to the TB, and verified that the previously broken wires haven't been mixed up and are connected to the correct pins inside the wiring harness connector, I'd say the throttle actuator itself is at fault. I suggest you look for a good used original throttle body complete with electronics in eBay. Don't buy any of those cheap "brand new" units 'cause they're more than likely to be junk.
There may also be a separate problem with the charge motion control valves inside the intake manifold being stuck. It's a common problem because oil vapors from the driver's side valve cover get sucked in via the PCV system and over time, they get gunked up. The only way to really find out is to remove the intake manifold and take a look unless you have a bore scope that you can pass into the intake manifold runners.
There may also be a separate problem with the charge motion control valves inside the intake manifold being stuck. It's a common problem because oil vapors from the driver's side valve cover get sucked in via the PCV system and over time, they get gunked up. The only way to really find out is to remove the intake manifold and take a look unless you have a bore scope that you can pass into the intake manifold runners.
Thread Starter
Joined: Aug 2024
Posts: 13
From: FL
Quick update:
Put a new actuator in. Person that did it, didn't do the clock spring correctly so I had ZERO pedal response. Had someone else look at it, they fixed that and brought it back to where at least I could drive it even though it was still in limp mode
which wouldn't go past 2k RPM. Put a new TPS in it, pedal and pedal sensor and it still did the same. Then We adjust the screw under the throttle body and VOILA. Check engine light is on but I was able to get the car up to 110 MPH. Doesn't make
sense to me or the person that helped me do it but damn, this new engine RIPS. Throttle response is snappy, it'll actually spin tires and as of now, she rips. What the hell could that be.
I determined that the motor has roughly 1700+ miles on it. I verified it was new and cost over $5k but it's been hard to get more details. So let me ask you gurus? Adjusting the throttle body, would that just magically make it out of limp mode and now
able to actually drive it ***** to the wall!? I'm no mechanic but this seems odd after all the fighting and people that have looked at it. We haven't replaced the PCM yet, that's on the to-do but I have someone that wants to trade it as-is and I'm leaning
that way for sure.
Thoughts? Check the vid below
Thanks
https://drive.google.com/file/d/1BBa...ew?usp=sharing
Put a new actuator in. Person that did it, didn't do the clock spring correctly so I had ZERO pedal response. Had someone else look at it, they fixed that and brought it back to where at least I could drive it even though it was still in limp mode
which wouldn't go past 2k RPM. Put a new TPS in it, pedal and pedal sensor and it still did the same. Then We adjust the screw under the throttle body and VOILA. Check engine light is on but I was able to get the car up to 110 MPH. Doesn't make
sense to me or the person that helped me do it but damn, this new engine RIPS. Throttle response is snappy, it'll actually spin tires and as of now, she rips. What the hell could that be.
I determined that the motor has roughly 1700+ miles on it. I verified it was new and cost over $5k but it's been hard to get more details. So let me ask you gurus? Adjusting the throttle body, would that just magically make it out of limp mode and now
able to actually drive it ***** to the wall!? I'm no mechanic but this seems odd after all the fighting and people that have looked at it. We haven't replaced the PCM yet, that's on the to-do but I have someone that wants to trade it as-is and I'm leaning
that way for sure.
Thoughts? Check the vid below
Thanks
https://drive.google.com/file/d/1BBa...ew?usp=sharing
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