how do i test my injectors?
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
how do i test my injectors?
i think they are bad. i have a hard time starting the car and have to give it gas to keep it running for the first 30 seconds or so after starting. Also sometimes i have a surge in rpms when cruising on the freeway.
thanks
thanks
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: how do i test my injectors? (C4Fetish)
Doubt that is injectors, but could be.
Don't you have a thread from about 20 minutes ago saying that the dealer wants to charge you $2,000 for injectors? So they have already diagnosed that there is a problem? Care to share?
Don't you have a thread from about 20 minutes ago saying that the dealer wants to charge you $2,000 for injectors? So they have already diagnosed that there is a problem? Care to share?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: how do i test my injectors? (C4Fetish)
What kind engine?
Usually hard starting when warm points to leaking injectors. Rich at Cruzin Performance has a terrific reconditioning service with 48hr turnaround at $80/set. You can measure the static resistance of each to see if all are close in value to each other and in the 12-16Ohm range.
The surge could be due to sticking injectors as well as other things.
Usually hard starting when warm points to leaking injectors. Rich at Cruzin Performance has a terrific reconditioning service with 48hr turnaround at $80/set. You can measure the static resistance of each to see if all are close in value to each other and in the 12-16Ohm range.
The surge could be due to sticking injectors as well as other things.
Le Mans Master
Joined: Sep 2001
Posts: 7,928
Likes: 1
From: More cowbell...
St. Jude Donor '04
Re: how do i test my injectors? (C4Fetish)
That doesnt really sound like injectors.. I would check out the Fuel Pressure Reg.. Its easy to see if the diaphram is broken.. just pull the vaccum line out of the back of the FPR.. have a friend watch it as you start up the car.. if fuel starts coming out of the FPR (where the fuel line was plugged in) that means it is shot.. (oh, and turn it off RIGHT away if fuel starts coming out!!! you might want to put a little cup under it or something, so you dont spray fuel all over the place if it is broken!!)
-Mark
-Mark
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
Re: how do i test my injectors? (PeteL)
Doubt that is injectors, but could be.
Don't you have a thread from about 20 minutes ago saying that the dealer wants to charge you $2,000 for injectors? So they have already diagnosed that there is a problem? Care to share?
Don't you have a thread from about 20 minutes ago saying that the dealer wants to charge you $2,000 for injectors? So they have already diagnosed that there is a problem? Care to share?
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
Re: how do i test my injectors? (MarkLT1)
That doesnt really sound like injectors.. I would check out the Fuel Pressure Reg.. Its easy to see if the diaphram is broken.. just pull the vaccum line out of the back of the FPR.. have a friend watch it as you start up the car.. if fuel starts coming out of the FPR (where the fuel line was plugged in) that means it is shot.. (oh, and turn it off RIGHT away if fuel starts coming out!!! you might want to put a little cup under it or something, so you dont spray fuel all over the place if it is broken!!)
-Mark
-Mark
hopefully thats my problem and i just saved myself 2000 dollars :D
any thoughts??
Le Mans Master
Joined: Sep 2001
Posts: 7,928
Likes: 1
From: More cowbell...
St. Jude Donor '04
Re: how do i test my injectors? (C4Fetish)
also, i replaced my egr last week, and when i took off the plenum there was fuel in it.....could this be fuel from the fuel pressure regulator? Thats my thinking since thats where the vacuum line from the fuel pressure regulator goes...... :confused:
hopefully thats my problem and i just saved myself 2000 dollars :D
any thoughts??
hopefully thats my problem and i just saved myself 2000 dollars :D
any thoughts??
-Mark
