Question about 2001 Honda Odyssey
Sometimes after a long trip. When i go to restart the Odyssey (w/185k miles) the engine starts surging wildly from ~900 to 3000 RPM and keeps surging. Once I reved engine to ~300 and kept it there for a minute or so and it stopped surging but then would not idle. Drove van home anyway, next morning it seems to be OK. It has done this several times now. Any suggestions?
SOURCE: I have a 2001 Celica
The Mass Air Flow sensor (MAF) was dirty. I took it out and cleaned it with Electrical Contact Cleaner until the tiny wires were shiny, put it back, and it was fixed. Be sure and disconnect the negative battery terminal, so that the ECM reprograms itself when the cable is hooked back up. Do not touch the tiny wires in the MAF, as they will break, and a new sensor is $200 or so.
The MAF should be cleaned every year, and every time the air filter is replaced.
Posted on Jul 25, 2008
SOURCE: EGR Valve
An engine surge is usually caused by a fuel system management or drivetrain failure. The fuel management system utilizes sensors that monitor emission output and engine performance are communicating with the main ECM (Engine Control Module) controlling fuel mixture, timing and emission management systems. While the engine is surging the ECM is "hunting" by adjusting the fuel mixture and timing. These adjustment are made by the ECM in a isolating manner as the ECM tries to satisfy its coordinates.
These coordinates are not satisfied because of a system malfunction.
Test for DTS's (Diagnostic Trouble Codes)
Posted on Jul 31, 2008
SOURCE: reving high and
is your check engine light coming on? I am sure it is. If so, you need a diagnostic run on the computer to pull the engine codes and go from there. it's usually some electrical part that pertains to the idle that needs replacing..........could be one of many many things making it do that. Take vehicle to shop that can diagnose it and repair the problem. go to the dealer if you dont' know of a really good diagnostic shop, as computer diagnosis is very tricky.... one part gone bad can trigger other parts to act up and it's difficult at times to accurately diagnose the correct part to replace to make everything kosher.
Posted on Oct 13, 2008
vacuum leak..look to area behind air cleaner to intake .. snorkel area first..spray carb cleaner there after you start it to discover vacuum leak.... this is a guess .. but a good one... check first for hoses off/ leaking intake air sources and let me/us know
Posted on Nov 24, 2008
Here is the most common cause of surges and stalls, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Nov 28, 2008
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