Help, she wont start!

74z/28 · 07-10-2021, 02:14 PM

Anyone have an idea on what to do? I have a 2018 ZL1 A10 with 58xx miles. The only engine mods are: Soler TB, Soler throttle controller, WeaponX blower lid and Granatelli 0 Ohm plug wires. I had it out this morning and it ran fine. Went to start it up early this afternoon and it wouldn't start. It cranked and sputtered. I got the "reduced power" message. I finally for it to start but it would only idle. It would shift into gear but the pedal didn't rev the engine at all. I disconnected the battery for an hour and tried again with the same results. I disconnected the battery again and checked the connections of the TB and intake sensor.

I cant drive it to the dealer like it is now. Anyone have an idea on what to do?

2SS Capt · 07-10-2021, 02:17 PM

Get an OBD-II reader and pull the codes, your CEL is on so there are codes present.

avalonandl · 07-10-2021, 02:28 PM

TB connection?

Chef-j · 07-10-2021, 02:41 PM

Put stock back on and see.

Gunkk · 07-10-2021, 02:46 PM

1. pull codes.
2. remove the throttle controller at least.
3. if #2 doesn't work, put the whole car back to stock.

74z/28 · 07-10-2021, 04:44 PM

Update: I charged the battery as it was low for some reason. After re-seating the TB connection and connecting the battery cable the car started right up. It seemed to run and drive normal, but I was only able to take it for a short drive as it started to rain. The check engine light was still on and it gave the "service rear axle" message once. I read the codes and had these 2: P0697 (sensor reference voltage “c” circuit open) and a P2122 (throttle/pedal position sensor/switch “0” circuit low input). I wrote an email to Mike at Soler asking his opinion. I might be putting the factory TB back on to see if that fixes the problem.

hawk02 · 07-10-2021, 05:32 PM

Quote:

Originally Posted by 74z/28

Update: I charged the battery as it was low for some reason. After re-seating the TB connection and connecting the battery cable the car started right up. It seemed to run and drive normal, but I was only able to take it for a short drive as it started to rain. The check engine light was still on and it gave the "service rear axle" message once. I read the codes and had these 2: P0697 (sensor reference voltage “c” circuit open) and a P2122 (throttle/pedal position sensor/switch “0” circuit low input). I wrote an email to Mike at Soler asking his opinion. I might be putting the factory TB back on to see if that fixes the problem.

I would suspect the throttle controller more than the throttle body. Remove it and see if the check engine light goes out.

Stephen12ZL1 · 07-10-2021, 08:14 PM

remove the throttle controller as stated above then clear codes. Recheck all spark plug wire connections as well.

CW3SF · 07-10-2021, 08:17 PM

Quote:

Originally Posted by hawk02

I would suspect the throttle controller more than the throttle body. Remove it and see if the check engine light goes out.

This. I’d try this next.

semif18 · 07-11-2021, 03:01 PM

Disconnect battery for 15 minutes.........that should fix it.........resets your Throttle Control Sensor......

07-10-2021, 02:14 PM	#1
74z/28 Drives: Looking Join Date: Jan 2021 Location: IL Posts: 20	Help, she wont start! Anyone have an idea on what to do? I have a 2018 ZL1 A10 with 58xx miles. The only engine mods are: Soler TB, Soler throttle controller, WeaponX blower lid and Granatelli 0 Ohm plug wires. I had it out this morning and it ran fine. Went to start it up early this afternoon and it wouldn't start. It cranked and sputtered. I got the "reduced power" message. I finally for it to start but it would only idle. It would shift into gear but the pedal didn't rev the engine at all. I disconnected the battery for an hour and tried again with the same results. I disconnected the battery again and checked the connections of the TB and intake sensor. I cant drive it to the dealer like it is now. Anyone have an idea on what to do? Attached Images

07-10-2021, 02:28 PM	#3
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,018	TB connection? __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

07-10-2021, 02:41 PM	#4
Chef-j Drives: 2018 Camaro 1SS Join Date: Jun 2018 Location: DFW Posts: 422	Put stock back on and see. __________________ 2018 1SS 6MT: SOLD

07-10-2021, 08:14 PM	#8
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,824	remove the throttle controller as stated above then clear codes. Recheck all spark plug wire connections as well. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

07-10-2021, 02:17 PM	#2
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,833	Get an OBD-II reader and pull the codes, your CEL is on so there are codes present. __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting *After delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Pedals, SS Wheel Caps, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF-Full Front & Rockers, 35% Tint, CeramicPro coated, RST Stainless Brake Lines, Castrol SRF, MSD Plug Wires, Mamo V3 Ported TB *Left: My "fun" ride (475 HP). Right: My "work" ride (52,000 HP): a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph. BOTH AWESOME to operate...*

07-10-2021, 02:46 PM	#5
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 5,183 View My Garage	1. pull codes. 2. remove the throttle controller at least. 3. if #2 doesn't work, put the whole car back to stock.

07-10-2021, 04:44 PM	#6
74z/28 Drives: Looking Join Date: Jan 2021 Location: IL Posts: 20	Update: I charged the battery as it was low for some reason. After re-seating the TB connection and connecting the battery cable the car started right up. It seemed to run and drive normal, but I was only able to take it for a short drive as it started to rain. The check engine light was still on and it gave the "service rear axle" message once. I read the codes and had these 2: P0697 (sensor reference voltage “c” circuit open) and a P2122 (throttle/pedal position sensor/switch “0” circuit low input). I wrote an email to Mike at Soler asking his opinion. I might be putting the factory TB back on to see if that fixes the problem.

07-11-2021, 03:01 PM	#10
semif18 Drives: 2018 ZL1 1LE White Join Date: Jun 2017 Location: Clovis, CA Posts: 215	Disconnect battery for 15 minutes.........that should fix it.........resets your Throttle Control Sensor......

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