Didn't fix it. Clean IAC valve, throttle body, and MAF sensor Tested the TPS. just went out and unplugged each individual coil. P1506 - Idle Air Control. Old car, so I put in a new IAC. Top. The intake manifold gasket, IAC valve, TB gasket (replacing the one I made with a factory one), and possibly the timing belt (if I can get a whole day set aside and standby transportation if I have to go buy parts. 0 This truck has started. It’s still horrible. C. Took the car to a mechanic, after looking at it the mechanic said it had a bent throttle actuator, he spent like 10 minutes fixing it and charged me. I have an 01 Ford focus. Code P1506 Ford Tech Notes. 3) Vacuum test - Hayne's states should be between 17 & 22, I have 21 & holds steady 4) Cleaned & tested the MAF, all goodcode po511 - idle air control valve circuit malfunction. Engine does sound a little off. 1998. . Also, check for intake leaks or stuck PCV Valve. 2 volt result and a normal idle! We can not duplicate this with 2 new IACs (7. Replaced iac valve, still get p1506 code and check engine light. no vacuum leaks. The P1506 code means that the engine idle is out of factory specification. 99 lincoln town car when cold outside rough and high idle changed iac valve still doing it when its warm outside its doesnt do it or not as bad there is an. drives ok now, but retrieved code #p1506 idle air control over speed malfunction. 0 L DOHC Duratec V6 . problem still persisted. Changed iac cleaned the thorel body. f150 with 4. . Very intermittent. I am still at wits end about this problem. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. NEED TO DIAG. 0L with 160K miles I left some one borrow it for a week and I get it back with these codes. 0 sohc 102000 miles 5 speed. Ford Idle Air Control Valve Diagnostics High Idle DTC P1506. I have a 2000 Ford Explorer V6 that is running at very high idle and a code of P1506. cleaned evap boxes changed pcv hose check tps - good changed IAC - could new one be bad Could PCM be bad. The P1506 code means that the engine idle is out of factory specification. you have a vacuum leak before the Idle air control . just put a motor in it with less miles to replace blown motor. 3 helpful. (idle air control) valve unplugged, the engine. . If the gasket is damaged, you can get a new one from the parts store. Engine does sound a little off. 0L SOHC. we have replaced the iac and still idling rough & very high. Fuel pumped humms for couple seconds when key goes to start. Code P1506 Ford Tech Notes. Is it possible that. '99 CV, '94 CV, & two '96 EB Broncos RIP. 2001 Escort. For the p1506 they replaced the idle air control motor. Also, did the P1506 come back with the new IAC? Top. checked vapor management valve, holds vacuum. With engine still running, touch the unattached lead to the positive pin of the battery: the vacuum should jump up to approximately 20 inches. Replaced battery, drove 50 miles p1506 came back. The problem was a bad Idle Air Control (IAC). . You most likely have a intake air leak after the mass air flow sensor. . It still runs with a high idle for 3-4 seconds after releasing the thrott. 75ish at WOT. 4 posts • Page 1 of 1. Sometimes the Idle Air Control (IAC) may have carbon built up. CHANGED IAC. . 4 posts • Page 1 of 1. drives ok now, but retrieved code #p1506 idle air control over speed malfunction. i just bought a 97 cobra about two weeks ago now i took off the throttle body cleaned it along with the maf, changed spark plugs and fuel filter and now i'm getting the p1506 code, the car is will idle at 1500 while i'm moving and takes about 10-15 seonds after a complete stop to drop to 1000rpm before it would idle at about 850-900, i cleaned the. 2. Seems normal to me. helpful? Yes. Use steel round wire brushes, small picks, etc. Other problems can cause the idle to over speed. 0 SOHC idle speed high erratic idle air control valve changed 3 x still code p1506 can the parts all be bad? using aftermarket made in china parts. no vacuum leaks. . Replaced IAC and TPS, still doing it. escort; p1506; 0 votes. Ran smooth as glass before head was removed. 1997 - 2003 Ford F150 - 1998 4. Already replaced IAC and checked for leaks. 3 it has no vac leaks all timing marks are ligned up it idles to high and keeps giveing p1506 idle air control overspeed err and id protacol pwm . Posted by Anonymous on Jul 22, 2014. At idle plug off the port to the IAC and see if the warm engine will still idle and not stall. If the idle speed comes down to about 500-600 RPM with the passages blocked, suspect a mechanically stuck IAC solenoid. Ford Idle Air Control IAC valve test how to adjust minimum idle speed. You can reset the idle air control (IAC) valve by turning the car on, putting the car into park, pressing the brake down, then pushing the gas pedal down, counting down about 5 seconds, turning the car off, waiting 10 seconds and start the car again, checking to see if the car is idling properly. the service engine soon light is on. Unfortunately, a. Hi, i have a 98 ford escort with 160,000 miles on it. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned. Items to look at on the data stream would be timing,what. 1987 - 1996 F150 & Larger F-Series Trucks - code p1506 - Stock 1996 F150 5. Sometimes the Idle Air Control (IAC) may have carbon built up. If still having problems, recommend pulling the EGR. coil. Finally, if you discover that your vehicle’s idle control valve is faulty, I’ll give you an idea of how much you should expect to spend, so you don’t get ripped off at the repair shop. Plugging off holes in the throttle body to try and fool the computer is just a bad idea and can lead to further problems. Cleaned MAF. Code P1506 1998 Ford F150 Tech Notes. Disconnect IAC valve and look for little or no change in engine rpm as an indication of a stuck or damaged valve. E150 1999 econovan code p1506 - E-150 Ford Cars & Trucks. . Sometimes the Idle Air Control (IAC) may have carbon built up. What cause the PCM to set IAC too high? Is any one know?The P1506 code means that the engine idle is out of factory specification. But the most common cause is the IAC valve. Leaving a bonus and positive feedback is not required, but doing so is certainly appreciated!. Engine had a tune up and told IAC valve needs replaced. Even if you don't want to post, you can still 'Like' and react to posts. P1506 check engine code 97 ford escort lx. P1506 - Idle Air Control. The P1506 code means that the engine idle is out of factory specification. Hi, i have a 98 ford escort with 160,000 miles on it. Shop for the best Idle Air Control Valve for your 1996 Ford F-150, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. ) Cleaned the MFC (with MFC cleaner) Result: No change 3. My bride mentioned a week or so ago that she thought the fuel economy was not what it used to be. I took it in to get the codes fixed, and there were two codes, p1506 and p0421. Declarative. P0751 code for an escort,indicates a problem with Shift solenoid #1 in the trans,more testing is required for this code. Check engine light. just put a motor in it with less miles to replace blown motor. read more Finally, if you discover that your vehicle’s idle control valve is faulty, I’ll give you an idea of how much you should expect to spend, so you don’t get ripped off at the repair shop. Pulling the codes showed a P0171 and P1506. Even if you don't want to post, you can still 'Like' and react to posts. 2k questions 31. answered Sep 2, 2018 by. p0171. changed it, its still doing the same thing, before the CEL, I had changed IAC valve, Did I do something wrong by changing these items, I. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle. TEST: check for out of adjustment throttle stop screw. It still runs with a high idle for 3-4 seconds after releasing the thrott. P1506 - Idle Air. The P1506 code means that the engine idle is out of factory specification. The P1506 code means that the engine idle is out of factory specification. Idle is to high. 2 - Answered by a verified Ford Mechanic. Search Fixya. 0L DOHC We've replaced CVR VALVE, CLEANED INTAKE MANIFOLD, REPLACED GASKGETS THERE - Ford Cars & Trucks question. Disconnect. Replace the elbow and it will resolve the issue. Trouble codes are P1506 (idle air control overspeed error), P0171 (system too lean - bank 1) and P0420 (catalyst system efficiency below threshold - Bank 1). Hi, i have a 98 ford escort with 160,000 miles on it. e4od high idle all the time unplug iac idles perfect checked tps found green & black wires bare & touching each other replaced tps still idles high could the ecm be. Optional Information: P1506 ---Idle Air control (IAC) IAC Valve--stuck open Vacuum Leaks- most common cause Evap System-Leak Look for Vacuum Leaks Unplug IAC Valve and listen for change in idle If you get an idle difference -- remove & try to clean valve or replace. 2001 FORD F250 5. I have a Ford escape with a high idle and code P 1506. I check it again and it say p1506 no DTC definition found. ODB says all sensors are ok MAF sensor reports normal values ECT reports normal temps IAT reports appropriately Fuel trims in city seem good +/- 10% All sensors report back okay on my scanner too. 0. Hi , i have a 1995 Escort with 1. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned. Sometimes the Idle Air Control (IAC) may have carbon built up. I don’t drive the car now, it stalled out a few times in traffic on the way back before I swapped everything back out. 056 change the fuel filter also. The vehicle has some years on it. Most of the posts I've read here talk about a very rough idle when the IAC is disconnected. All plugs firing. Was this . TEST: inspect the ECM for signs of somehting being spilled on it. 1997 - 2003 Ford F150 - P1506 after cleaning throttle body - So my truck had P0402 and P0401 codes. Sometimes the Idle Air Control (IAC) may have carbon built up. Changed plugs and coil to fix other codes and had the IAC come back. The P1506 fault code refers to an issue with the Idle Air Control Valve (IACV) in the vehicle’s engine. 2000 ford ranger xlt 2. im going out of town and ive been on the road for a few hours going over some mountains and all the sudden the service engine soon light comes on, pulled over worried something was wrong and everything looked ok. Symptoms Causes Seriousness Can I Still Drive? Diagnose Difficulty of Inspecting Get Additional Help. Have a 2002 Ford Escort 2. Checked iac connector with voltmeter meter and it was good. IAC MOTOR REPLACED. 67 wot temp sensor 73 degrees 2. The P1506 code means that the engine idle is out of factory specification. Hello everyone, I have 2001 Taurus SEL. and it is doing the same thing your ford escort doing. My car was having classic signs of bad IAC valve such has revving to 2500-3000 rpm, stalling on occasion and the diagnostic code reader said it was my IAC valve. And you can maintain it under source control with commits at each code change. i had the same prob except it would idle lower, my pressure was running 24-26lbs instead of 30lbs. This code means idle air control overspeed. i think the problem is the idleair control module if you have one take it out and clean it. 83 (IAC) and chassis ground. 1999 Ford ranger 2. I just brought a 96 Ford escort and the engine light is on, it has 71000 miles on it. 0L, 5. P1506 - Idle Air Control. it seems after running it for a while its came back down to normal but still not sure if its quite right (truck has been driven a few times since the new sensor). 4L HIGH IDLE PROBLEMS. Welcome Visitor! Please take a few seconds and Register for our forum. Disconnect scan tool from DLC. 98 ranger 2. High School or GED. C. On the IAC remove the electical connector. ok, I had a cel, P1506, which was a throttle position sensor. Insert the key into the ignition and start the engine. p0171 Have a 2002 Ford Escort 2. My truck had always idled around 950. asked Apr 28, 2018 by anonymous. After cleaning the IAC and clearing the code I drove the truck about 13 miles before the P1506 code came back. Actions: - Replaced IAC Valve (not the problem) Recent Work: -code popped up right after giving my truck a tune up (go figure). read moreIdle seems more normal now that I've replaced the IAC but still idles and runs rough. IAC has updated its Ask the Experts: Influenza web page to reflect important Q&As about updates to Advisory Committee on Immunization Practices (ACIP) recommendations for influenza vaccination for the. Search Fixya. 0 votes . s. Hi, I have a 99 Mazda 626 lx 2. might try seafoam to top end??? L. So we put the old IAC valve back on and the idle was not so high.