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MY ej 22 is stuttering
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Hi all im having a issue that im just starting to trouble shoot.
94 ej22 the van stutters and acts like its flooding or running with a choke valve partialy closed. This happens on hard acceleration most pronounced in 3rd and 4th gears but im sure its the same in 1st and 2nd just not as noticable. If I back out of the accelerator and drive modestly all is fine. I inspected the air filter and cleaned the MAF sensor and all is good there. As far as CEL codes go my CEL always pops up for the trans nutral position code. Its been so long that I forgot wich connector to couple to check for codes is it the green or black pair or both. On condition of the engine I had it smoged 3 weeks ago and it tested in way above average, so with that I would like to think the plugs and wires can also be rueled out as part of the problem. Some more info my harness was done by Leon K with a VSS installed in my tach. Thanks George |
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Joe Baker
Bet it is still maf. Cleaning doesn't work.
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On Apr 9, 2012, at 11:38 AM, "gfrank3245" <gfrank3245@...> wrote:
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Start with simple checks
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like listen to fuel pump working, strange noises indicate clogged fuel filter, clogged fuel tank or pump itself Engine needs most fuel when accelerating hard, it "stutters" if there is not enough Leon On 4/9/2012 11:38 AM, gfrank3245 wrote:
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Kent or Jackie Ashton
On Apr 9, 2012, at 4:40 PM, Leon Korkin wrote:
My 2.5 was recently cutting out at higher speeds--like you turned the key off for a half second. It would sometimes do the same while accelerating. It ran fine at lower speeds. I finally noticed that the plug wires had some cracks in them. New wires fixed it (NGK from Advance Stores).This happens on hard acceleration most pronounced in 3rd and 4th gears Do you know about checking the engine at night for visible sparking and crossover? Higher load on the engine brings out ignition faults. Just an idea. -Kent 90 Van, 2.5L SOHC |
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Eric Neiwert
A very similar issue with my ej 22 and I spent a great deal of time going through different pieces from MAF to spark plugs etc.
Final solution was simple. Cleaned the main connection of the engine harness to the computer with some denatured alcohol and the problem went away. Applying the KISS principal is important. Eric Neiwert |
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Hi folks. I'm not sure I understand what 'Stuttering' means. Is this 'hesitation' or 'cutting out' ? Perhaps 'stumbling' ?
Excuse me but I am not being perverse, but this description is unknown to me. FYI: Tech for over 45 years... European Specialist. If I understand the problem correctly I woud say stumble or hesitation. If this is the case, I would first monitor the 02 response . If it seems to run lean I should suggest miss fire.... plugs or wires. If it is running rich, MAF or CTS problem. If none ofabove, a dose of STABILANT22A on all connectors for the EFI. Denatured alcohol will leave the pin to socket dry and at worse, change pin/socket relative resistance. As you can imagine, increased resistance would alter senor input to the ECM and in the case of the CTS, would richen up the mixture some. This also applies to the Subaru MAF as it is sensitive to in/out millivolt signals. regards dk |
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Are those technical terms, are there definitions somewhere?
On 2012-04-10, at 14:02, Don <dkveuro@...> wrote:
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