Help with a misfire
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None whatsoever. Well, the one time it did fire up today it idled extremely rough and threw a "idle rpm too low" code. Other than that nothing. I left my o-scope at work so I cant see what the crank signal looks like til next week. But for the moment any parts purchases are on hold. Have court monday for a noise violation in my daily, and said daily also needs subframe bushings.
I put it back on hoping it wasnt part of the problem lol. Still has a starting issue that is related to the ess sensor and/or signal as it takes a few seconds to start, but I can watch the tach go nuts as it struggles. Gonna tackle that this weekend after I get the wiring diagrams from AllData at work.
When you got it started after the new battery you said it was idling, it didn't idle smooth?
I don't have any more ideas other than checking grounds and connectors.
Sorry bro.
*and fuses.
Last edited by BigCajun; Apr 8, 2017 at 07:28 PM.
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After the new battery it idled perfectly. Ive double checked all of my grounds and fuses. Oddly enough Ive been looking through the forums in regards to the P0336 code, and more than a few people have said it ended up being the starter. Now, even though mine in a 2004 4 port AT, I have a starter for a 2007. I purchased it from autozone. Bought one for an 07 as it was the upgraded starter. You dont think that could be part of the problem do you? There is atleast one person who had starting issues while using the 2007 starter on an older model, specifically that it drew too much current and it wouldnt spark.
After the new battery it idled perfectly. Ive double checked all of my grounds and fuses. Oddly enough Ive been looking through the forums in regards to the P0336 code, and more than a few people have said it ended up being the starter. Now, even though mine in a 2004 4 port AT, I have a starter for a 2007. I purchased it from autozone. Bought one for an 07 as it was the upgraded starter. You dont think that could be part of the problem do you? There is atleast one person who had starting issues while using the 2007 starter on an older model, specifically that it drew too much current and it wouldnt spark.
I'll look around and see if I can find anything about it..
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I swear, if its not one thing with this car, its another. Just crawled under it to check the starter positive connection as that's what alot of people say the P0336 ends up being and what do i find? The connection is loose enough that it takes little effort to unscrew the nut with a wrench. Long story short, positive post on the solenoid was loose and now the stud is stripped. Time to cash in on that AutoZone lifetime warranty lol
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From: Southeast TN
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Looks like I'm going to have to buy a better scanner. Theres is a signal somewhere not getting where it needs to be. Also found out that flooring ny gas pedal while cranking does NOT shut the fuel pump. I thought doing that shut the pump off and killed the spark? Either way, as it cranks over it sounds like its just spinning. Almost sounds the same as if you disconnect the ess with the plugs still in and crank it. Any ideas? And yes, I tried both of the ESS sensors I have AND both the Injen and stock intake. Here a picture of the rpm readout, gonna see about gwtting a better scantool to see the crank/ess signal and maybe injector signal.
