Honda Accord Sedan 1999 Problems

My Honda Accord sedan 1999 with 173K miles has problems. After its warmed up after a normal drive, it won't start without me pressing hard on the gas pedal. The dashboard lights flicker like there was some sort of electrical malfunction. Sometimes it happens in traffic. When it does, it is usually when I'm stopped at a light, and getting ready to make a turn. But when it happens while I'm moving, the car jerks forward suddenly and the RPM drops to zero, but seems to recover a split second afterwards and the engine doesn't die.

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How to identify a bad main relay on a Honda (PGM-FI)
This is a 1999 Honda Accord with an intermittent no start complaint. Other symptoms include: stalling, long crank times, surging, bucking, poor transmission shifting. Some quick work with the test light allowed me to zero in on a PGM-FI main relay issue, which was confirmed by a visual inspection on the relay board itself. If you can forgive my soldering work, done through a tiny video camera screen, then you can get an idea of how to repair these relays quickly and easily. Don’t forget to check the Related Videos for a follow up video, detailing the operation of the PGM-FI relay. Engine Performance Diagnostics chapter 15 Symptoms - intermittent no start - no codes present - possible stalling, long crank times, surging, bucking, poor transmission shifting Fix - repaired the PGM-FI main relay Tests shown - using scan data to check for a crank signal during cranking - using the check engine and immobilizer lights to identify possible issues - how to check for spark using an incandescent test light - how to check for injection pulse using an incandescent test light - how to check a fuel pump power feed using an incandescent test light - how to visually identify a failed solder joint on a PGM-FI main relay - how to repair a cracked solder joint Tools used - Autel MS905 MaxiSys Mini Diagnostic System with Connector Kit - USA Version https://www.jbtoolsales.com/autel-ms905-maxisys-mini-diagnostic-system-with -vci-and-connector-kit-usa-version#oid=1014_1 - OTC 3633 Mini Circuit Tester https://www.jbtoolsales.com/otc-3633-mini-circuit-tester#oid=1014_1 - Portasol SP-1K Soldering Iron, Cordless Butane https://www.jbtoolsales.com/portosol-sp-1k-soldering-iron-cordlss-butane#oi d=1014_1 Playlist - (Chapters 14, 15,16) Fuel Delivery and Fuel Pressure Testing https://www.youtube.com/playlist?list=PLAFYVCyenqcrstVqfSc1PCbQ1pebuNIO6 Related videos - Operation and testing of a Honda main relay (PGM-FI) - an SD Premium video https://youtu.be/QVxOQTSPyGY - How to test and fix a PGM-FI main relay - Honda/Acura https://youtu.be/X5Qp-ToR8KA - Fuel Pump Electrical Circuits Description and Operation https://youtu.be/Rqtfrx-HeD0 - How to test fuel pressure, injector pulse and spark with basic tools - Honda https://youtu.be/SUxagOAVS5M - No Start No Fuel Pressure Troubleshooting - GM 2.2 Ecotec https://youtu.be/R9PzG_FiNhY For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!





Misfire Case Study (1999 Honda Accord)
There are three more parts to this series on ScannerDanner Premium. Here is the playlist. https://www.youtube.com/playlist?list=PLM4TD8VJ3gj-itLSXgJGJ6p3jeBY2iGku There is a 14 day free trial In Part 2 take questions from my students and really take this thing from start to finish on why I chose a particular test and how exactly to perform the test. I also show and discuss the compression waveforms that I took on this engine and why I came back to it being a fuel problem. These lecture videos (Part 2) will be in 3 segments and will be about 1 hour each. So there will be a ton of great information for those willing to learn and take your diagnostics to the next level. For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!





1999 Honda Accord stalls after starting and won't restart





P0401 Honda Accord, Cleaning EGR Passages - EricTheCarGuy
I know I'm jumping around but it will all become clear in the end, I hope. This is once again that same Accord that I worked on but this time I focus on cleaning the EGR passages. Over time these passages become clogged with what is called "hard carbon deposits", many speculate as to the origins of this material but it is in my opinion the product of condensation and carbon buildup inside these passages that seems to contribute to this problem. The fix is pretty straight forward as you can see but the diagnosis can be tricky at times. Sometimes the check engine light will come on for an EGR flow code, but on earlier models EGR flow is not detected by the ECU and in those cases it might manifest as a failure of an emissions test for high NOx emissions. When this is the case the symptoms sometimes include, surging on the highway or a misfire under load. For the most part EGR's are easy to check but there are some EGR systems that are very difficult to service and repair. All I can say is to consult with the service manual or a knowledgeable tech whenever you run into a system your not familiar with. --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- You can also leave questions as text or video responses to this or any other video I've posted. Stay dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.




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