I Was Just Wondering If Snyone Has Ever Had Or If It Was Possible To Have An Intermittent Problem With The Injectors. Reson I Ask Is That Some Days My Car Seems To Perform Better Than Others, Not 100% But A Noticeable Difference. So, I Believe My Performance Issue To Be With The Injectors, Should Be, I Have Replaced Everything Else In The Car With New Parts. As Of Right Now I Have A New Set Of Primaries And Secondaries Waiting To Go Into The Car Hoping That Will Fix The Problem......

 

bump...

 

anyone out there that can fill in?

 

Man, it's a good question - I'm surprised nobody's jumped on it. If you're stock, it's a bear to change them, but if it's not much work then I'd go ahead and make the swap.

Dave

 

Yeah, I Have Got A New Set All The Way Around But Just Not Have Had The Time To Install. If This Does Not Fix It Then I Really Have Tried Everything, Really. !

 

Have you ever noticed if the days when it runs really good coincide with days that it is cooler out side?

 

yes pretty much all cars "run" better the cooler it is outside. oh boy yet another vote to shotgun parts at the car when something is wrong.....

 

Mad 7 Tist, Im Not Just Throwing Parts On The Car Trying To Fix It, I Along With Cam At Pettit, And A Few Of His Friends From Japtrix, Mazdacomp, And Steven Kahn Were Also Stumped. So, Im At My Last Resort, I Have Been Troublseshooting For Over A Year Now Trying To Fix My Ride...

 

Wow, I Thought This Would Be A Decent Thread..

 

People are waiting to see if the other set of injectors change anything. Install them and see what happens.

It's troubleshooting, you have to eliminate areas unti you get to the problem; so your next step is to eliminate the injectors.

 

I See Your Point, I Sure Hope The Injectors Fixes The Prob. If Not, Then I Dont Know What Else To Do.... I Have Replaced And Tested Everything...pray For Me...

 

ok man but you have to realize that to most people on here "checking everything..." usualy means staring at the engine bay and making a couple of posts about the problem. not trying to be a dik

 

Understood, But I Have Tested And/or Replaced All Solenoids, Sensors, New 20b Pump, Map Sensor, Used A Stock Ecu, M2 Stage 3, Power Fc, And A Wolf 3d. I Have Replaced The Wiring Harness With New About A Month Ago. If You Do Not Know The Story Here It Is: I Replaced The Motor A Year Ago With A Rebuild By Pineapple Racing W/all New Components, Stage 2 Oil Mods, And Everything Cryotreated. At The Same Time I Did An Rps Carbon-carbon Clutch, Act 9.5 Lb Flywheel, 20b Pump, Marren Fuel Injection Flowed And Matched The Injectors, New Oil Injectors And Lines, 99 Efini Turbo's, Magnecore 10mm Wires, Ngk Plugs, M2 Downpipe, M2 Ecu, New Pettit Intake Setup, Pettit Ast, Vaccum Hose Replacemnet. I Was Very Meticulous In The Manner That I Rebuilt Taking My Time Being Very Thorough.

After I Tried Everything That I Could Imagine Myself For Year After All These New Mod's, I Took It To Pettit Back In June, But To No Avail Could Not Fix The Problem After An 8 Day Stay. We Did However Find What The Car Is Doing. Basically, It Comes Out Of The Hole Strong And Normal But When Accelerating At 2750 Rpms Or Above It Just Dumps Fuel. Cam Tested The Fuel System (flow/capacity) And Said That My Pressures And Flow Rate Are Perfect. Then He Benched The Injectors And Said That They Benched Fine, Then He Himself Went Through The Whole Car Testing The Solenoids And Sensors. When We Put The Wolf 3d Standalone On The Car While On The Dyno We Were Able To Pull The Fuel Back To See How The Car Should Pull. With The Fuel Pulled Back I Laid Down Mid 320's Whp, So Needless To Say That Has Me Wanting The Car To Run Correctly Even Worse. Cam Said That I Could Keep The Computer And Just Drive It That Way And Enjoy The Car, But I Know That Is Only Putting A Band-aid On The Problem. I Myself Want To Fix The Underlyng Problem Itself....

 

Bump

 

Why are you bumping the thread? Try the other injectors and then post back if it does or doesn't fix the problem. Then people can help you troubleshoot another area. However, you have to rule out this one first.

 

Was Trying To Catch The Eye Of Mad7tist For His Input...

 

 

Ive had days that it seems to perform better for no apparent reason...

 

ever get the injector set cam was going to send you in the car?

 

Yeah I Got The Secondaries He Sent Me In A Fuel Rail To Make It Easier As Well. And I Went Ahead And Bought A New Set Of Primaries To Be Installed At The Same Time. Figured Since I Was Gonna Be In There I Might As Well, Huh? We Know That Its Dumping Fuel, But The Fuel Pressure Is Great And The Injectors Appear To Be Ok. If Its Not The Injectors Themselves Then It Has To Be The Fuel Control System, Right. We Have Monitored And Spec'd Out All The Sensors While On The Dyno With The Wolf 3d, And After I Got Back Home Installed A New Wiring Harness Then Monitored It With A Pfc. Did Not See Anything Reading Out Of The Ordinary. Any Suggestions From Anyone Would Be Great.