MSPNP cutting out fuel at various loads
#1
MSPNP cutting out fuel at various loads
Okay so I thought I had it licked. I turned off the OVERRUN settings and that solved my cutting out issue before.Now it seems like something is killing my juice. I replaced the battery and alternator but something is killing them. After a full battery charge on a new battery and good alternator, the car runs fine. After a while running on the road, say 10 minutes, it starts to shut off my fuel at certain rpms while in gear. Out of gear it revs fine. What the heck is going on?
*MSPNP9093 w/boost, no AFM*
*MSPNP9093 w/boost, no AFM*
#6
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By "cuts out" you mean it runs lean & sputters, or something else? Does it accelerate fine if you romp on it? Could be that your VE table is just lean as **** in the part throttle cells. Have you ever tuned it and did it ever run well when warmed up?
There are plenty of people on this board who are completely fluent in the ways of Megasquirt (not me) but you have to give them something to work with.
POST A LOG AND YOUR MSQ.
There are plenty of people on this board who are completely fluent in the ways of Megasquirt (not me) but you have to give them something to work with.
POST A LOG AND YOUR MSQ.
#7
By "cutting out" I mean that it feels like its cutting fuel...no power. Sure, it sputters into it and out of it, but it goes out like a flashlight and when I let go it regains its normal way. I will post my .msq tonite* If I'm allowed back into the garage( you married guys know what I mean).
#8
Anyway, dude def post a log/msq so these guys can help you rule out MS related issues... fwiw, with all the quirks my car has, i'd be dead lost without a wb02...u might wanna invest in an Lc-1 or AEM Uego...
Also, like I mentioned your symptoms sounds similar to mine, when my fuel pump took a dump on me...
#9
Here is my setup. The datalog is me backing out of the garage, getting on the road and trying to get the car to move, but it was really bad. I had just replaced the fuel pump and everything was going fine, but I believe some rust is screwing me up and clogged a couple of injectors.
Let me know what you think of the actual problem of the engine cutting out around 60-70 KPA (a guess while looking at the laptop while running).
what is wierd is that I took the car out while it was still cold and got into boost (about 6-7psi) and it ran fine for those few minutes that it was cold. I am guessing that the problem lies in the naroowband O2 or some KPA-related function.
Let me know what you think of the actual problem of the engine cutting out around 60-70 KPA (a guess while looking at the laptop while running).
what is wierd is that I took the car out while it was still cold and got into boost (about 6-7psi) and it ran fine for those few minutes that it was cold. I am guessing that the problem lies in the naroowband O2 or some KPA-related function.
#12
Problem Fixed!!
Turns out that my fuel tank was completely rusted over, causing my new fuel pump and filter to get clogged, not to mention the injectors. I replaced the Tank with a a bigger 1994 unit and everything is running great now. Also my spark plugs were fouled and along with that the car is great now. I could literally scoop out piles of rust with my hand. Very nasty.
Turns out that my fuel tank was completely rusted over, causing my new fuel pump and filter to get clogged, not to mention the injectors. I replaced the Tank with a a bigger 1994 unit and everything is running great now. Also my spark plugs were fouled and along with that the car is great now. I could literally scoop out piles of rust with my hand. Very nasty.
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