192 views. 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. If the IAC closes and the idle slows down to about 500 rpm +/-, you know the IAC is being held open causing the high idle. 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. Idle Air Control (IAC). 4L HIGH IDLE PROBLEMS. Just changed plugs(. Seems normal to me. sometimes, the car. TEST: check for out of adjustment throttle stop screw. 1 answer 226 views. I had to wait 9 days for the pat from Motorcraft. Because the car has 122k on it though, I will be changing anyways. . 3k comments 22. The IAC was the first item I changed. 96 Chrysler concorde 3. drives ok now, but retrieved code #p1506 idle air control over speed malfunction. The vehicle has some years on it. 2002 Mercury Sable 204,000 mi, Visitor. escort; p1506. scaned again still reads lean. The P1506 and P1507 codes are fairly generic codes that indicate an issue with your engine idle. . Start the engine and take note of the idle RPMs. replaced idle air control, unplugged ac connector at compressor, tps was bad replaced it, still idles fast. I remove the - Cars & Trucks question. . 0 hour of labor. Crimp the crankcase ventilation tube closed which runs from the induction air tube to the valve cover and look for the engine RPM to drop back to a low idle speed. 5L, I have consistantly pull the gas after start or it won't stay started. Browse Categories. HELP. My truck had always idled around 950. Jan 20, 2016 • Cars & Trucks. . It gradually backs down to the 1 to 1. 96 ford explorer still idling too high. Changed plugs. . I had problem for a code p1506 than I bought me a new iac than the engine light still come up. Pulling the codes showed a P0171 and P1506. p. The vehicle has some years on it. Changed plugs. Replace the elbow and it will resolve the issue. . ford ranger with a rebuilt 2. CHANGED IAC AND STILL THE SAME. We replaced the IAC and all was good for a while. . 0l with codes p1506 & p1504. P1506 - Idle Air Control System At Adaptive ClipCheck for vacuum leaks and clean the throttle body, maybe check the iat and maf sensors. if you unhook the iac it idles at around 1000 and still. The symptoms of a bad idle air control valve are an illuminated check engine light, stalling, wrong idle speed, and. might try seafoam to top end??? L. Also check hose to EGR valve. I did purchase a can of mass air flow cleaner, i need to get a special tool to remove the sensor. I searched the forum, and all I can seem to find are stalling issues related to the IAC and P1506 codes. Thank you. 5. The P1506 fault code refers to an issue with the Idle Air Control Valve (IACV) in the vehicle’s engine. 0L DOHC engine like I have is on the front of the engine. . Clicking this will make more experts see the question and we will remind you when it gets answered. ???? no other codes Starting to pull hair out now????? Any other ideas. Since then the truck has been running great. the service engine soon light is on. Code p1506 I replaced iacv and cleared code p1506. The P1506 code means that the engine idle is out of factory specification. Damaged IAC valve ; Disconnect IAC valve and look for little or no change in engine rpm as an indication of a stuck or damaged valve. Replaced iac valve, still get p1506 code and check engine light. 2003 - 2004 SVT Mustang Cobra. - Answered by a verified Ford Mechanic. SOURCE: buick lesabre nightmare Need to get a scan tool and look at the data stream while it is running for alot more info. But here it is P1506, P0453, P0171. 83 (IAC) and chassis ground. Replaced MAF, IAC (new gasket) checked for vacuum leaks and check alt/battery. p1506; check-engine-light;. hi thanks for your time i have 2000 ford ranger 2. 6l its misfiring ive changed the maf,iac,tps and intake manifold and still the same what could it be? Posted by El Chano Lopez on Feb 26, 2015. 2001 ford escort 2. Sometimes removing it from the throttle body and cleaning it up will allow the pintal to start working again if it's stuck in position. Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. i have a 97 ford f-150 4. A P1504 is a circuit malfunction for the IAC valve , the 2 previous codes p1401 is a egr sensor concern and the p1506 is a IAC overspeed error, , replacing the IAC should have fixed the P1506, but the P1504 wasn't there before you replaced the valve, inspect the connector to the IAC and make sure its properly seated. the hot idle is around 1050-1100 rpm in park/neutral andXXXXX checked for vacuum leaks or plugged pcv system npf. Sometimes the Idle Air Control (IAC) may have carbon built up. Leaving a bonus and positive feedback is not required, but doing so is certainly appreciated!. 2000 ford ranger xlt 2. Want Answer 0. It’s still horrible. 2002 Ford Escort: idle air control code. Vacuum leaks can definatly cause the high idle as well. An unmetered air leak will cause the IAC to not control idle speed and set this code. Hi, i have a 98 ford escort with 160,000 miles on it. Idle is to high. trouble code p1506 97 escort getting code p1506 and idle speed seems to be high - Ford 1997 Escort question. If engine speed drops, go to next step. Measure voltage between PCM connector pin No. dropped 30 to 40 rpm. I ordered 2 parts from napa and they gave me an 01 IAC, than they gave me an IAC that had an elbow connector that made it impossible to fit. The P1506 code means that the engine idle is out of factory specification. 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. 3rd Gen 1997-2002 2. This is the what it does. Cleaned throttle body and maf again. drives ok now, but retrieved code #p1506 idle air control over speed malfunction. I the took the new IAC motor/valve out and tried the IAC control tests with the KOEO. 2k questions 31. The P1506 code means that the engine idle is out of factory specification. answered Jul 31, 2018 by Reynaldo (13. Not sur. changed the IAC and now have this code wi. changed the IAC and now have this code wi. Several days ago, it quit running. 96 FORD BRONCO EB,302 ,CODE P1131,P1506. unplug the IAC and see if it goes away. i dont have a tach but my guess it was right around 1200rpms. p1506 iac fault. Unable to restart. read moreJoined November 26, 2010 Messages 190 Reaction score 2 City, State Ladysmith, British Columbia Year, Model & Trim Level 1999 Explorer Sport 4X42007+ ford 5. The P1506 code means that the engine idle is out of factory specification. . 22, 2020 /PRNewswire/ -- IAC (NASDAQ: IAC) announced today its Board of Directors has approved a plan to spin-off its full stake in Vimeo, the world's leading video software company. 2002 Ford Escort: idle air control code. I have a 2000 explorer 4x 4. P1506 IAC (overspeed) Vacuum leak are common cause for this code condition, Some of these causes are from the EGR or PCV hose or PCV itself, You can use a brake cleaner or carburetor cleaner and spray along suspected area and note any RPM changes, Sometimes this code is a challenge where the RPM is high and no vacuum. 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. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Sometimes the Idle Air Control (IAC) may have carbon built up. Can anyone help me plz?VACUUM LEAK IN 96 FORD TAURAS 3. P1506 check engine code 97 ford escort lx. Hey guy's, can you help. Truck is a 2000 Explorer Sport, with 4. When the IAC is plugged in, no rough idle at all, but idle stays high around 1400rpm. read more Joined November 26, 2010 Messages 190 Reaction score 2 City, State Ladysmith, British Columbia Year, Model & Trim Level 1999 Explorer Sport 4X4 Remove the idle air control valve and idle air control valve gasket. Didn't fix it. I've searched the forum, put a new IAC valve on, checked for vacuum leaks,(found none) and still get a P1506 code. The truck dipped down to about 600 RPM for a split second, then right back up to 950. Replaced IAC, no change. 0 4 Cyl with code P1506, what does the code mean how do I fix it? 0 votes . If there is no driveability concerns putting a new IAC may not alleviate this concern. Has been getting progressively worse for 3 years. i have a 97 ford f-150 4. SCAN SHOWS CODE P1506 IDLE AIR CONTROL OVERSPEED ERROR ALSO SAYS (SEE P0507). i have a 02 ford econoline that has high idle i have changed the iac and tps and no results also no codes - Ford 2003 E150 question. it has a new maf and a new IAC. Posted by djkeyman2 on Oct 04, 2009. last year have replaced ever senser on the thing and replaced the vacaum line going to the back of the intake what ever it is it causes the. what could it be? that is the only code that shows up on the scanner. Code P1506 1998 Ford F150 Tech Notes. The cost to diagnose the P1506 code is 1. 5L, 5 spd, Hurst, '01-'03 Front, 32's, 15x10 Eagle 058, 3" Body Lift,'06 Badges, Tails, Corners, 5k HIDs 2013 F150 STX 4x4 5. . With the Idle Air Control valve connected, monitor the voltage across the 2 wires at the IAC connector. I have a scan tool so I checked the codes before starting. This code means idle air control overspeed. A defective PCV valve is #2. 75ish at WOT. 223 satisfied customers. 9k questions 32. Sometimes the Idle Air Control (IAC) may have carbon built up. Troubleshoot the Check Engine Light, for Free. how i clean Idle Air Control (IAC) Valve - Jeep 2000 Grand Cherokee question. To diagnose the P1506 code, it typically requires 1. Idles high around 1500-2k. 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. replaced the Idle control valve. I replaced the hose but my check engine light did not go off. P1506 (IAC overspeed error), P0135 (O2 bank 1 sensor 1), P1451 (Evap), P0141 (O2 bank 1 sensor 2), and P1409 (EGR Vac). The P1506 code means that the engine idle is out of factory specification. I am sorry I have taken so long to reply. . The IAC valve should be relatively inexpensive and easier to change than performing further diagnostics. 6 V8 I m getting 3 Code s po351. Unplugged the IAC valve while idling. 0. Sometimes the Idle Air Control (IAC) may have carbon built up. 99 FORD ESCORT. Code P1506 Ford Tech Notes. It isn't the IAC in many instances. New MAF, new IAC - Answered by a verified Ford Mechanic 95 escort 1. 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. Go over the vacuum lines and look for weak collapsed lines, broken, or poorly seated. Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. Check engine light. They can get porous after a while. C. 0 sohc 102000 miles 5 speed. P1506 - Idle Air. Read full answer. If resistance is less than 5 ohms, go to next step. Sometimes the Idle Air Control (IAC) may have carbon built up. Okay, your engine most likely has a vacuum leak. chrisabston Discussion Starter. The P1506 code means that the engine idle is out of factory specification. I corrected both. Items to look at on the data stream would be timing,what. Replaced battery, drove 50 miles p1506 came back. its going to cost $35. 37,872 satisfied customers. I have a 2000 Ford Explorer V6 that is running at very high idle and a code of P1506.