Tony Mamo TB install problem

Delaney · 07-20-2018, 06:31 PM

Hi Guys-

I just installed the TB. While I'm certainly not a wrench, it was pretty straightforward. Upon starting the car there's a considerably rough idle and the car dash shows "reduced power mode".

Any ideas?? FWIW- no other mods to the engine other than green filter (which I installed two months ago).

newchevyman · 07-20-2018, 06:34 PM

Added too much horsepower without a tune, put the stocker back on and it'll be good as new.

hashtag · 07-20-2018, 07:20 PM

Quote:

Originally Posted by Delaney

Hi Guys-

I just installed the TB. While I'm certainly not a wrench, it was pretty straightforward. Upon starting the car there's a considerably rough idle and the car dash shows "reduced power mode".

Any ideas?? FWIW- no other mods to the engine other than green filter (which I installed two months ago).

The Check Engine Light was set off when you disconnected the mass air. You need to have the code cleared. Happened to me as well

waterman · 07-20-2018, 07:35 PM

A negative cable disconnect before installation may have prevented a CEL/RPM.

If you physically touched the sensor end of the MAF that can code too.

Try a battery disconnect. If that doesn't work, as hashtag mentioned you can clear the code with a OBD2 reader.

Delaney · 07-20-2018, 07:38 PM

Thanks for the responses!!

I was getting a Throttle Actuator code that my reader wouldn't clear. Car sounded awful. I put the stock TB back on and cleared the CEL and it's smooth as before. Maybe I'll try again (this time disconnecting the negative battery cable) later.

waterman · 07-20-2018, 07:54 PM

Tony is a hands on guy and super helpful. You could get in touch with him if you can't resolve the issue.

devnull · 07-20-2018, 07:57 PM

It sounds like a bad connection to the throttle body servo. Your description matches what would happen if you unplugged the TB and started the car. You sure it was seated all the way?

djfury05 · 07-20-2018, 08:00 PM

Going to have to return it and get a different one from Tony. Same thing happened to me. He said it was one of his more radically ported ones and not all cars like them. I could tell it wasn't brand new also and he tried it previously on another car before sending to me. Mine didn't like it either. Car ran like shit when started. Put old TB back on and it was fine. Tried resetting battery to do a relearn etc with Mamo TB and no better also. The new one he sent me works fine.

SSallday · 07-20-2018, 09:11 PM

Just ordered mine a couple of days ago. Hopefully, I don't encounter this problem

Markoz28 · 07-20-2018, 11:17 PM

By chance did you unplug the MAF upon install? If so don’t. It’s best to leave it connected to the wires and just hanging until you put back together.

conradsteph · 07-21-2018, 11:40 AM

Try a battery disconnect via the negative terminal in the trunk. Disconnect for a few minutes then reconnect.

Delaney · 07-21-2018, 03:03 PM

I'm going to contact Tony and see if it's just a bad unit. Switching back to stock everything worked perfectly so I think that could be it.

You guys are great and thank you! I do love this car!

djfury05 · 07-21-2018, 04:46 PM

Quote:

Originally Posted by Delaney

I'm going to contact Tony and see if it's just a bad unit. Switching back to stock everything worked perfectly so I think that could be it.

You guys are great and thank you! I do love this car!

It's the throttle body he sent you 100%. He'll get you squared away though Tony's always been a stand up guy.

Delaney · 01-12-2019, 06:26 PM

UPDATE**

Finally sent the Throttle body back to Tony and he IMMEDIATELY sent me a new one. Installed it and YES works great. Butt Dyno feels improvement. Sound is great too!

Tony Mamo is SOLID!!

07-20-2018, 06:31 PM	#1
Delaney Drives: '17 Summit White ZL1 Join Date: Jul 2017 Location: Pacific Palisades, CA Posts: 81	Tony Mamo TB install problem Hi Guys- I just installed the TB. While I'm certainly not a wrench, it was pretty straightforward. Upon starting the car there's a considerably rough idle and the car dash shows "reduced power mode". Any ideas?? FWIW- no other mods to the engine other than green filter (which I installed two months ago). __________________ Gregory -2017 Camaro ZL1 Last edited by Delaney; 07-20-2018 at 07:11 PM.

07-20-2018, 06:34 PM	#2
newchevyman Drives: 2017 Camero ZL1 Join Date: Nov 2015 Location: Texas Posts: 130	Added too much horsepower without a tune, put the stocker back on and it'll be good as new. __________________ 2017 ZL1 A10 Dyno/Quarter Mile/Dragy 9.71@141.2 MPH so far. 2007 Z06 H/C/I/E Half Mile - 169 MPH. Sold.

07-20-2018, 07:35 PM	#4
waterman Drives: Grandad's C2 L89 Join Date: May 2017 Location: 2051.50N 15629.60W Posts: 1,711	A negative cable disconnect before installation may have prevented a CEL/RPM. If you physically touched the sensor end of the MAF that can code too. Try a battery disconnect. If that doesn't work, as hashtag mentioned you can clear the code with a OBD2 reader. __________________ 2018 ZL1 1LE sw/PDR

07-20-2018, 07:38 PM	#5
Delaney Drives: '17 Summit White ZL1 Join Date: Jul 2017 Location: Pacific Palisades, CA Posts: 81	Thanks for the responses!! I was getting a Throttle Actuator code that my reader wouldn't clear. Car sounded awful. I put the stock TB back on and cleared the CEL and it's smooth as before. Maybe I'll try again (this time disconnecting the negative battery cable) later. __________________ Gregory -2017 Camaro ZL1

07-20-2018, 07:54 PM	#6
waterman Drives: Grandad's C2 L89 Join Date: May 2017 Location: 2051.50N 15629.60W Posts: 1,711	Tony is a hands on guy and super helpful. You could get in touch with him if you can't resolve the issue. __________________ 2018 ZL1 1LE sw/PDR

07-20-2018, 07:57 PM	#7
devnull Scientific negotiator Drives: 2019 Grand Sport Join Date: Mar 2017 Location: Forsyth, GA Posts: 873	It sounds like a bad connection to the throttle body servo. Your description matches what would happen if you unplugged the TB and started the car. You sure it was seated all the way? __________________ 2019 Grand Sport M7 2018 ZL1 *1LE* 6MT 2017 SS *1LE* 6MT . Matthew 25:40 *ΜΟΛΩΝ ΛΑβΕ*

07-20-2018, 08:00 PM	#8
djfury05 Drives: 2017 ZL1 A10 Join Date: Jul 2014 Location: Atlanta, GA Posts: 394	Going to have to return it and get a different one from Tony. Same thing happened to me. He said it was one of his more radically ported ones and not all cars like them. I could tell it wasn't brand new also and he tried it previously on another car before sending to me. Mine didn't like it either. Car ran like shit when started. Put old TB back on and it was fine. Tried resetting battery to do a relearn etc with Mamo TB and no better also. The new one he sent me works fine.

07-20-2018, 09:11 PM	#9
SSallday Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013 Location: PA Posts: 584	Just ordered mine a couple of days ago. Hopefully, I don't encounter this problem

07-20-2018, 11:17 PM	#10
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	By chance did you unplug the MAF upon install? If so don’t. It’s best to leave it connected to the wires and just hanging until you put back together.

07-21-2018, 11:40 AM	#11
conradsteph Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017 Location: Phoenix, AZ Posts: 73	Try a battery disconnect via the negative terminal in the trunk. Disconnect for a few minutes then reconnect.

07-21-2018, 03:03 PM	#12
Delaney Drives: '17 Summit White ZL1 Join Date: Jul 2017 Location: Pacific Palisades, CA Posts: 81	I'm going to contact Tony and see if it's just a bad unit. Switching back to stock everything worked perfectly so I think that could be it. You guys are great and thank you! I do love this car! __________________ Gregory -2017 Camaro ZL1

01-12-2019, 06:26 PM	#14
Delaney Drives: '17 Summit White ZL1 Join Date: Jul 2017 Location: Pacific Palisades, CA Posts: 81	UPDATE Finally sent the Throttle body back to Tony and he IMMEDIATELY sent me a new one. Installed it and YES works great. Butt Dyno feels improvement. Sound is great too! Tony Mamo is SOLID!! __________________ Gregory -2017 Camaro ZL1**

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