Silentpoet Posted August 22, 2022 Share Posted August 22, 2022 New coil packs and spark plugs cleared the misfire codes. But the 2 new o2 sensors didn’t fix the rough running. So it’s on to valve adjustment. Hopefully this is the last step. Because after this I really have to get into the weeds of odd problems. 3 Link to comment Share on other sites More sharing options...
Silentpoet Posted August 29, 2022 Author Share Posted August 29, 2022 Spoiler: It didn't totally fix it. I ended up adjusting about half of the valves. Added about 4 gallons of ethanol free gas and a can of gumout fuel system cleaner. It ran moderately horrible. It misfired on 2 or 3 cylinders. I thought maybe getting the fuel system more time to act and the vehicle more time to warmup would be a good idea. I let it run for roughly 20 minutes. Then I drove it about a mile away and back. Seemed to run smoother. I shut it off so I could clear the error codes, when I went to start it the vehicle refused to start. Yay me. 1 3 Link to comment Share on other sites More sharing options...
Silentpoet Posted August 29, 2022 Author Share Posted August 29, 2022 Hot start issue could be a main relay on the fuel injection. I’m going to try and test that. 2 Link to comment Share on other sites More sharing options...
ChuteTheMall Posted August 29, 2022 Share Posted August 29, 2022 What would a Honda dealer say? 1 Link to comment Share on other sites More sharing options...
DAKA Posted August 29, 2022 Share Posted August 29, 2022 43 minutes ago, ChuteTheMall said: What would a Honda dealer say? Would say you need ................................. $3400 parts and labor 4 Link to comment Share on other sites More sharing options...
railfancwb Posted August 30, 2022 Share Posted August 30, 2022 Son had two Honda Odessa vans. Both lost transmissions - twice. By the time they gave up on the second one the children were grown and gone so they went with different brand and style of vehicle. 1 Link to comment Share on other sites More sharing options...
railfancwb Posted August 30, 2022 Share Posted August 30, 2022 13 hours ago, DAKA said: Would say you need ................................. $3400 parts and labor To start… 1 Link to comment Share on other sites More sharing options...
Ricordo Posted August 30, 2022 Share Posted August 30, 2022 20 hours ago, Silentpoet said: Hot start issue could be a main relay on the fuel injection. I’m going to try and test that. Fuel filter, Silentpoet? 1 Link to comment Share on other sites More sharing options...
Silentpoet Posted August 30, 2022 Author Share Posted August 30, 2022 6 hours ago, Ricordo said: Fuel filter, Silentpoet? Recently replaced it and fuel pump. 1 Link to comment Share on other sites More sharing options...
geeorge Posted August 30, 2022 Share Posted August 30, 2022 Double up on the gumout, I use the cheapest real gumout in the white label. It may take almost a whole tank of gas to see a difference. 1 Link to comment Share on other sites More sharing options...
Ricordo Posted September 1, 2022 Share Posted September 1, 2022 Can't help but think that the fuel system is in a bad state. It is not that uncommon, some have had to replace the fuel lines. Not a happy thought. Especially if there's sparks hitting the plugs. Unless the spark plugs are also in a bad state. Fwiw, I use Sea Foam regularly. E-infused gasoline tends to gum things up. Good luck, Silentpoet. 2 Link to comment Share on other sites More sharing options...
Huaco Kid Posted September 1, 2022 Share Posted September 1, 2022 If you flip the air filter lid upside down, you can run it at the drag strip. 1 1 Link to comment Share on other sites More sharing options...
Silentpoet Posted September 6, 2022 Author Share Posted September 6, 2022 On 9/1/2022 at 8:49 AM, Ricordo said: Can't help but think that the fuel system is in a bad state. It is not that uncommon, some have had to replace the fuel lines. Not a happy thought. Especially if there's sparks hitting the plugs. Unless the spark plugs are also in a bad state. Fwiw, I use Sea Foam regularly. E-infused gasoline tends to gum things up. Good luck, Silentpoet. I’m going to go ahead and replace all 4 injectors. Don’t know why it rotates the resized pictures. But that was today’s progress. Tore it all down and was going to try to clean the injectors, but it is just going to be easier to replace them all. 1 Link to comment Share on other sites More sharing options...
Silentpoet Posted September 19, 2022 Author Share Posted September 19, 2022 Got new injectors in, but have to reset the ecm tomorrow morning. 2 Link to comment Share on other sites More sharing options...
M&P15T Posted September 22, 2022 Share Posted September 22, 2022 That's usually a symptom of un-metered air getting in past the MAFS, or a vacuum leak. Ya gotta check all the vacuum hoses, and every part of the intake past the MAFS. What year/model/miles? 2 Link to comment Share on other sites More sharing options...
Dukenukem Posted September 26, 2022 Share Posted September 26, 2022 So you got it back to normal operation yet or still having issues? 1 Link to comment Share on other sites More sharing options...
Silentpoet Posted September 26, 2022 Author Share Posted September 26, 2022 5 hours ago, Dukenukem said: So you got it back to normal operation yet or still having issues? Still having issues. I ordered a sensor that went bad. With it plugged in the car would only start with starter fluid. Unplugged it and it would start right up. Got a vacuum leak, but I have an idea to try in the morning. I will then see how it runs. Till I replace the sensor I don't want to drive it, so maybe driving it thursday. The sensor should be here Wednesday. I think it is much closer to being ready. 3 Link to comment Share on other sites More sharing options...
Inyo Tim Posted September 26, 2022 Share Posted September 26, 2022 On 9/1/2022 at 6:49 AM, Ricordo said: Fwiw, I use Sea Foam regularly. E-infused gasoline tends to gum things up. I've found that small engines are the worst offenders. Small carbs with tiny jets. Just worked on a friends pressure washer that wouldn't start. The float bowl had little round white globs in the bottom. One glob had been sucked up and plugged the main jet. This is almost a new pressure washer. Told him to use ethanol free gas and run the tank and carb dry before storage. Sea Foam seems to help. 1 Link to comment Share on other sites More sharing options...
railfancwb Posted September 26, 2022 Share Posted September 26, 2022 Ethanol free at the nearest source is over a dollar more than so-called regular. Well worth it for small engines though. 2 Link to comment Share on other sites More sharing options...
Silentpoet Posted September 26, 2022 Author Share Posted September 26, 2022 Found the vacuum leak. Going to order a new intake plenum gasket. 3 Link to comment Share on other sites More sharing options...
railfancwb Posted September 26, 2022 Share Posted September 26, 2022 14 minutes ago, Silentpoet said: Found the vacuum leak. Going to order a new intake plenum gasket. Don’t even THINK about the bill for labor if you had gone through this paying a mechanic. 3 Link to comment Share on other sites More sharing options...
DAKA Posted September 26, 2022 Share Posted September 26, 2022 34 minutes ago, railfancwb said: Don’t even THINK about the bill for labor if you had gone through this paying a mechanic. Perhaps, but then maybe the mechanic has better knowledge of where to start............Maybe try a Message Board for Honda? 4 Link to comment Share on other sites More sharing options...
Silentpoet Posted September 26, 2022 Author Share Posted September 26, 2022 1 hour ago, DAKA said: Perhaps, but then maybe the mechanic has better knowledge of where to start............Maybe try a Message Board for Honda? I have gone through just about any related message thread on FitFreak. I can do the work part of being a mechanic, but the diagnostic knowledge is what I lack. Part of the problem is it is just a 14-15 year old car and stuff wears out. Lots of stuff. Currently it will start cold and run, I think replacing the gasket and sensor should fix it. The fuel pump is a cheap ass one from Amazon so it is probably a weak link, but it runs for now. When I get a bit more money I will replace it with a better one from Orielly's with a warranty. But you do the best you can within the budget you have. 5 Link to comment Share on other sites More sharing options...
Silentpoet Posted October 3, 2022 Author Share Posted October 3, 2022 Sort of got it running, but it still has a vacuum leak. Thought it was the intake plenum because when I sprayed there it affected the idle. So I ordered an intake plenum gasket. It was the #3 and #4 injectors leaking. Further spray testing determined those 2 were the culprits after I replaced the gasket. So I just finished working on the semi hot motor to get the intake manifold off so I can check those injectors. 2 Link to comment Share on other sites More sharing options...
janice6 Posted October 3, 2022 Share Posted October 3, 2022 2 hours ago, Silentpoet said: Sort of got it running, but it still has a vacuum leak. Thought it was the intake plenum because when I sprayed there it affected the idle. So I ordered an intake plenum gasket. It was the #3 and #4 injectors leaking. Further spray testing determined those 2 were the culprits after I replaced the gasket. So I just finished working on the semi hot motor to get the intake manifold off so I can check those injectors. Good luck, with that perseverance you'll get it done! 3 Link to comment Share on other sites More sharing options...
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