Engine Is Searching For Idle After Intake Mods

[JEFF POLTZ]

Im Having Problems With My Engine Searching For Idle. It Idles Ok When Cold, But After A Few Seconds The Idle Drops Off And Surges.this Started After Installing A Throttle Body Spacer, Cold Air Intake, Cat Test Pipe, And Muffler. To Remedy The Situation I Have Adjusted The Throttle Cable To Make Sure Theres Enough Slack, Checked For Vacume Leaks By Spraying Wd-40 In The Area, Changed The Air/idle Mixture Valve (not It),
Changed The Fast Idle Valve (not It), Took The Throttle Body Spacer Off And It Still Searches For Idle. Can Anyone Out There Help Me?

[E Honda]

Can you say throttle posistion sensor?.......

E.Honda.

[jameskersten]

you said you adjusted the IAC valve since this upgrade?

[JEFF POLTZ]

Originally Posted by E Honda

Can you say throttle posistion sensor?.......

E.Honda.

YES, E HONDA, I CAN SAY THROTTLE POSITION SENSOR. I FORGOT TO MENTION THAT MY MECHANIC CHECKED THAT PART, AND THAT WASNT IT. WHAT WAS CAUSING ALL THE PROBLEMS WAS THE IDLE ADJUSTMENT SCREW. I DIDNT TOUCH IT, I DONT HAVE A WRENCH TO FIT IT, SO WE DIDNT EVEN CONSIDER THAT. I TALKED TO THE GUY I BOUGHT THE CAR FROM, AND HE MENTIONED THAT THESE ENGINES ARE SUPPOSED TO IDLE AT A CERTAIN RPM, OR IT WILL CAUSE THAT PROBLEM. AS SOON AS MY MECHANIC CRACKED THE NUT ON THE SCREW, THE SURGING STOPPED. I WAS BOTH HAPPY AND PISSED,THAT IT WAS SOMETHING SO SIMPLE. MY MECHANIC ONLY CHARGED ME $30. WHICH I THINK IS VERY REASONABLE, CONSIDERING THAT I HAD IT TO HIM 4 TIMES, PUTTING NEW PARTS ON AND TAKING THEM OFF AND REPLACING MY OLD ONES. THE CAR IDLES FINE NOW, RUNS GREAT, BUT A LITTLE LESS MPG BECAUSE OF THE BOLT ONS. IM HAPPY FOR NOW.

[jameskersten]

it seems it always the simplist thing