Repair Shop?

[Route 66]

Looking for a good LT5 repair shop in Texas..Dallas or Fort Worth would be good...Thanks.

[Kevin]

the closest you're going to find is New Braunfels. Corey Hendersons shop. http://www.hendersonperformance.com/ what seems to be your problem, maybe we can help you

[Route 66]

the closest you're going to find is New Braunfels. Corey Hendersons shop. http://www.hendersonperformance.com/ what seems to be your problem, maybe we can help you
The secondary power not working. Thanks..

[Kevin]

going to need a little more info then that mate.

[Paul Workman]

Usually not too hard to fix yourself.

With the engine running, does the FULL POWER indicator come on when the POWER key is turned on? (The switch is either a momentary on; quarter-turn to the right before springing back, or "clicks" and remanins in the FULL POWER position when turn a quarter turn to the right, depending on the model year.)

The secondaries are turned on when vacuum is applied to the vacuum actuators which in turn open the throttle plates. On startup, vacuum is supplied to a reservior under the plenum by a pump in the right side headlight well. After 5-10 seconds, or when the engine starts, the vacuum chores are assumed by the plenum vacuum, in normal driving.

Provided there are no alarms (e.g. "SES" lights) and certain rpm, temperature, and throttle demands are met, the ECM will signal the vacuum solinoid switch, transfering vacuum form the reseroir to the mechanical vacuum actuators.

See schematic below...

http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/plenumvacuumcircuitsLT5LargeLarge.jpg

This should give you an idea of what's what and how to proceed - assuming you are in the mood to tackle it yourself?? Let us know...

P.

[Route 66]

going to need a little more info then that mate.
It was not working when I replaced the Injectors last summer. Some of The injectors were bad because I didn't use full power enough to keep them clean. I thought the secondary was not working because of the injectors. I replaced them with new ones. While I had the plenum off I checked for vacuum leaks and actuator function. okey there. Replaced vacuum solinoid while I had the top off the motor. The vacuum pump is good and works ok. I made sure everything was hookedup and put the plenum back on. Under normal power it runs ok. When you turn the power key on, the light comes on but the actuators do not open and It dosen't have secondary power. The same thing it was doing before I replaced the injectors. I think I need to have a diagnostic check done on the motor. There must be a sensor or something Not working. Has anyone had this happen if so what was the repair? Your assistance is greatly appreciated..Route 66

[XfireZ51]

It was not working when I replaced the Injectors last summer. Some of The injectors were bad because I didn't use full power enough to keep them clean. I thought the secondary was not working because of the injectors. I replaced them with new ones. While I had the plenum off I checked for vacuum leaks and actuator function. okey there. Replaced vacuum solinoid while I had the top off the motor. The vacuum pump is good and works ok. I made sure everything was hookedup and put the plenum back on. Under normal power it runs ok. When you turn the power key on, the light comes on but the actuators do not open and It dosen't have secondary power. The same thing it was doing before I replaced the injectors. I think I need to have a diagnostic check done on the motor. There must be a sensor or something Not working. Has anyone had this happen if so what was the repair? Your assistance is greatly appreciated..Route 66

Did you plug in the secondary MAP sensor?

[Route 66]

Did you plug in the secondary MAP sensor?

Yes, Thanks... I said yes . Are you talking of the sensor at the back of the plenum? If so then yes.

[Kevin]

are the actuators bad?

[Route 66]

are the actuators bad?
They are working. I used a hand vacuum pump an checked them while the top was off.

[Kevin]

They are working. I used a hand vacuum pump an checked them while the top was off.

this is exactly what i was going to suggest. is the key making proper contact?

[Route 66]

this is exactly what i was going to suggest. is the key making proper contact?
I would think yes, The light comes on when you turn the key.Thank you

[Route 66]

Going back to my original question. Any one know of a good ZR1 repair center in Texas? Around Dallas or Fort Worth would be good....Thanks route 66

[Kevin]

the closest you're going to find is New Braunfels. Corey Hendersons shop. http://www.hendersonperformance.com/

[sammy]

there is another map sensor under the computer ck to see if its connected . if you have a 90 .you could have the problem i had turned the key top on light lit but no secondaries .so i tried turning the key back a little and poof they worked . i just replaced the key switch with a toggle switch .

[Kevin]

there is another map sensor under the computer ck to see if its connected . if you have a 90 .you could have the problem i had turned the key top on light lit but no secondaries .so i tried turning the key back a little and poof they worked . i just replaced the key switch with a toggle switch .

fixing the switch is easy

[Route 66]

the closest you're going to find is New Braunfels. Corey Hendersons shop. http://www.hendersonperformance.com/
Thanks Kevin. I will try and contact him. I clicked on his web site above an it would not come up. Do you know if he can scan our motors on a computer to see what is wrong. GM had a computer program that would give the mechanic a lot more information than a scaner. It will be a long hall to trailer my car but If he can tell me what is wrong than I will.
Some time back I read about there being 2 shops in Dallas or Fort Worth I thought they might still be around....Anyway thanks again...route 66

[FU]

See my post in another section.

He is one of the best. And well worth the ride.

Henderson Performance Technologies , Corey Henderson
Address: 1660 Texas 337 Loop, New Braunfels, TX 78130
Phone: (830) 620-1117

http://www.hendersonperformance.com/

[RHanselman]

See my post in another section.

He is one of the best. And well worth the ride.

Henderson Performance Technologies , Corey Henderson
Address: 1660 Texas 337 Loop, New Braunfels, TX 78130
Phone: (830) 620-1117

http://www.hendersonperformance.com/


He's probably the only guy in that area that I'd take it to... Heck, there's so many TX ZR-1 Registry Members I'd be surprised if you couldn't find one of them that could stop by and help you out... or,you could fly me in and I'd help ;)

Cheers,
Ron

[sammy]

i drive 1600 miles one way to have him tune my 2 zr1s

[Route 66]

Thanks for every ones input on this problem..I will probably take it to him in the spring. In the meantime I will check the connections you have suggested.
Route 66

[Fully Vetted]

If you call him he will probably help you over the phone. He was extremely helpful to me when I called him. I still ended up taking him my car but he helped me diagnose a couple of other issues first. He is definitely the go to guy around here.