Need Help no running ZR1 - ZR-1 Net Registry Forums

Vettl98 · 04-30-2011

Hello Guys
hope you can read my not so good English
i have replaced my injectors from Racetronix
all primer and seconder
my ZR1 has 11 .000 miles and was the most of hear live in the Garage and the Showroom
Pete tells me last year to change the Injectors
because some time i have no full power i think and feel it
so i have replaced my injectors from Racetronix
i also take Jerry's gaskets for the plenum
and replaced the Spark Plugs from Delco
and the Fuel Filter also
and i t runs very nice the first time
i make a test ride and the tach falls out and the engines stop
so when i start again the the Starter is working but no running engine
the fuel pumps does not running at the starting i cant hear them
maybe the fuel pumps ? the fuse are OK
when you have any idea i am thanks full for all information
thanks a lot
Jochen

gbrtng · 04-30-2011

When you turn the ignition key on you should hear the fuel pump run for a second and then stop. If no sound from the pump, check back here for the step ...

tomtom72 · 05-01-2011

Quote:

Originally Posted by gbrtng

When you turn the ignition key on you should hear the fuel pump run for a second and then stop. If no sound from the pump, check back here for the step ...

I agree, sounds like a fuel issue to me also. I would connect my fuel pressure gauge to the port at the front of the right fuel rail. There is a valve just behind the back of the alternator with a silver cap on it. Unscrew the cap and thread the test gauge's hose on there.

I would follow the steps in the Factory Service Manual for doing the KOEO fuel pressure test. KOEO = Key On, Engine Off test.

Let us know what you find.

Tom

ZR1Vette · 05-01-2011

I am picture oriented>>

tomtom72 · 05-01-2011

Thanks Mike! That helps more than a thousand words!

zr1man@yahoo.ca · 05-02-2011

i heard after you change the injectors, you then have to disconnect the battery for a few minutes to reset the computer, then it will conform to the new injectors installed.

Vettl98 · 05-02-2011

Thanks a lot
When i turn the ignition key on i cant hear the fuel pump
i will check the full press and i have disconnect the battery at the change
i only think the tachometer goes down before the engine goes out
maybe the Ignition Module ? or a connector
i get today a camera to look under the Plenum so i can check the connectors
i will let you know when i know more
thanks a lot for your Help
wfg
Jochen

Vettl98 · 05-04-2011

Hello Guys
so i have check the Fuel Press are ok the Pums are working
i have no trouble code in the ECM
and i have no ignition at the spark plug
maybe a connector i was looking wit the Camera under the Plenum but
cant see anything so i must remove the Plenum again
hope it will be a connector
when i know more i let you know
wfg
Jochen

A26B · 05-04-2011

No spark after a plenum pull is usually an indication of a bent pin in the ignition module. Most of us have done that (me included). Remove the plug & check the pins.

Kevin · 05-05-2011

Quote:

Originally Posted by zr1man@yahoo.ca

i heard after you change the injectors, you then have to disconnect the battery for a few minutes to reset the computer, then it will conform to the new injectors installed.

i don't remember having to do this when i swapped mine out

04-30-2011	#1
Vettl98 Join Date: Sep 2009 Location: Austria Posts: 34	Need Help no running ZR1 Hello Guys hope you can read my not so good English i have replaced my injectors from Racetronix all primer and seconder my ZR1 has 11 .000 miles and was the most of hear live in the Garage and the Showroom Pete tells me last year to change the Injectors because some time i have no full power i think and feel it so i have replaced my injectors from Racetronix i also take Jerry's gaskets for the plenum and replaced the Spark Plugs from Delco and the Fuel Filter also and i t runs very nice the first time i make a test ride and the tach falls out and the engines stop so when i start again the the Starter is working but no running engine the fuel pumps does not running at the starting i cant hear them maybe the fuel pumps ? the fuse are OK when you have any idea i am thanks full for all information thanks a lot Jochen __________________ 1992 Corvette ZR1 Polo Green ll 382

04-30-2011	#2
gbrtng Join Date: Feb 2006 Location: San Antonio area Posts: 1,179	Re: Need Help no running ZR1 When you turn the ignition key on you should hear the fuel pump run for a second and then stop. If no sound from the pump, check back here for the step ... __________________ “Buy the best example of what you want, and pay whatever it takes. That way, you cry only once.” ~ Bruce Meyer

05-01-2011	#4
ZR1Vette Join Date: Dec 2007 Location: Reston, Virginia Posts: 939	Re: Need Help no running ZR1 I am picture oriented>> __________________ Michael :cheers: [I][SIZE="2"]1990 RED on RED #566[/SIZE][/I] [I][SIZE="2"]WAZOO MEMBER[/I][/SIZE]

05-01-2011	#5
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Need Help no running ZR1 Thanks Mike! That helps more than a thousand words! __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

05-02-2011	#6
zr1man@yahoo.ca Join Date: Apr 2011 Location: Ontario Posts: 7	Re: Need Help no running ZR1 i heard after you change the injectors, you then have to disconnect the battery for a few minutes to reset the computer, then it will conform to the new injectors installed.

05-04-2011	#8
Vettl98 Join Date: Sep 2009 Location: Austria Posts: 34	Re: Need Help no running ZR1 Hello Guys so i have check the Fuel Press are ok the Pums are working i have no trouble code in the ECM and i have no ignition at the spark plug maybe a connector i was looking wit the Camera under the Plenum but cant see anything so i must remove the Plenum again hope it will be a connector when i know more i let you know wfg Jochen __________________ 1992 Corvette ZR1 Polo Green ll 382

05-04-2011	#9
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Need Help no running ZR1 No spark after a plenum pull is usually an indication of a bent pin in the ignition module. Most of us have done that (me included). Remove the plug & check the pins. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.