I have a intermitten Idle issue that has been driving me crazy for several years! in 2005 I built and installed a 306 with a Ford Racing E 303 cam, TFS Twisted Wedge heads, TFS Street Heat Intake w/ 70mm throttle body, BBK full length headers, #24 injectors w C&L 73mm mass air meter tubed for the #24 injectors. I also converted from an AOD trans to a Tremec 3550 5 speed.
Anyway every since I put this motor in I have had an idle issue that I can not seem to solve. after a cold start it will do it's regular cold Idle routine, Idle @ about 1200 rmp then come down to 850 rpm, where I have it set. After driving it around and it gets up to operating temp. I can come to a stop, push in the clutch and the idle will hang @ 1200 rpm again and stay there either for minute or two or it just continues there until I shut the motor off then restart it. then it idles right @ 850 rpm like it should and runs fine until the next cold start, then same routine again but not all the time. sometimes I can go for a month and not have any issues, then it starts doing it all over again. I have written to YO KEN @ Muscle Mustangs Magaziene and Ray Bochaz @ Hemmings Muscle Machienes Mag. And they both pretty much said it is either the Idle control solonoid is bad or TPS voltage out of ajustment! Well as the case may be I have put on 3 different ICM solonoids, the original, an after market and another new Motorcraft one, and the TPS(I've changed twice) voltage has allways been set @ .98V.
Plus I have also installed a new EGR valve & solonoid and tryed 3 different EEC IV computers and all with the same results!
I am at witts end with this problem Is there any body out there in the Mustang world that possibly knows what the problem may be?
And one other Question, why would my combo only run well with the C&L air meter and not either a Pro Flow or Pro M Racing air meter, All trimmed for #24 injectors. Other than the C&L the others work fine until the motor gets to operating temps then it bairly wants to idle @ 600 rpm no more! I don't have the problem w/ the C&L?
Anyway every since I put this motor in I have had an idle issue that I can not seem to solve. after a cold start it will do it's regular cold Idle routine, Idle @ about 1200 rmp then come down to 850 rpm, where I have it set. After driving it around and it gets up to operating temp. I can come to a stop, push in the clutch and the idle will hang @ 1200 rpm again and stay there either for minute or two or it just continues there until I shut the motor off then restart it. then it idles right @ 850 rpm like it should and runs fine until the next cold start, then same routine again but not all the time. sometimes I can go for a month and not have any issues, then it starts doing it all over again. I have written to YO KEN @ Muscle Mustangs Magaziene and Ray Bochaz @ Hemmings Muscle Machienes Mag. And they both pretty much said it is either the Idle control solonoid is bad or TPS voltage out of ajustment! Well as the case may be I have put on 3 different ICM solonoids, the original, an after market and another new Motorcraft one, and the TPS(I've changed twice) voltage has allways been set @ .98V.
Plus I have also installed a new EGR valve & solonoid and tryed 3 different EEC IV computers and all with the same results!
I am at witts end with this problem Is there any body out there in the Mustang world that possibly knows what the problem may be?
And one other Question, why would my combo only run well with the C&L air meter and not either a Pro Flow or Pro M Racing air meter, All trimmed for #24 injectors. Other than the C&L the others work fine until the motor gets to operating temps then it bairly wants to idle @ 600 rpm no more! I don't have the problem w/ the C&L?