Home page
SPONSOR AD SPONSOR AD

Topic: nothings easy

in Forum: All Vettes Discussion


nothings easy

Posted: 8/1/07 7:24pm Message 1 of 3
Lifetime MemberLifetime Member
Send PM
Lanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
as in my previous post, i am having troubles with my 90. started of with a code 42 which is the est. was suggested i change the ignition module before i change the ecm. tried it and code was gone but the egr stayed open when trying to pass someone.  when changing module all the plastic around wires going out of distributor were cracking. stores said a dealer item. dealer didn't have them and got them thru ecklers. guy in dealer said if codes changed like the did my ecm was probably bad so i replaced it.

problem now is the car runs rough as heck when idling and super rich.  figured i'd check egr valve. i couldn't believe where it is. underneath the throttle body. can't even get my finger in there to feel if it is working.

that's why i love my 75. the highest piece of technology is the electronic ignition. any other ideas on what to check would be gladly appreciated.Wits%20End



LIFETIME MEMBER #97
THE DYNAMIC DUO


SPONSOR AD:: (Our Sponsors help support C3VR)

nothings easy

Posted: 8/2/07 6:48am Message 2 of 3
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
I know whut ya mean on the EGR valve...what a pain.
You can test the valve with a vac. pump, but I would also suggest checking the solenoid that controls the vac. to it.
If you don't have the service manual(I forget if you do or not), I can pull some testing info for ya.

                                           Where's the EGR???


Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

nothings easy

Posted: 8/2/07 4:41pm Message 3 of 3
Lifetime MemberLifetime Member
Send PM
Lanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
thanks joel. i have the manual and it explains how to test. only thing is i wish some of their pics were better. also it seems to me that the gm manual explains more on the testing than procedures that may be needed to replace things. i remember when the manufactures manuals were the best to use in all ways.  it just doesn't make sense of why the motor is running the way it is. hopefully i can figure it out before i find those sticks of dynamtie i have hidden.Wits%20EndRolling%20On%20The%20Floor%20Laughing

great pic joel. hope anyone who looks checks out the ones that follow so they can see what's on top of it.Thumbs%20Up
eddie208752007-08-02 16:43:05


LIFETIME MEMBER #97
THE DYNAMIC DUO


in Forum: All Vettes Discussion


SPONSOR AD: (Our Sponsors help support C3VR)