PCGUY112887 Posted January 7, 2006 Report Posted January 7, 2006 OK to make a long story short, we were on our way home (I was taking my best friend, his brother, his friend, and my best friends girl friend). RIght after dropping everyone off but my best friend and his brother, we're goin down the road and out of no where his brother gets sick in my back seat. Here comes tons of TacoBell onto my floor, the back of my seat, bench, everywhere. It smelled SO BAD that we almost puke and all of the windows go down and i'm driving 1/2 way out my window. We're not far from home so I just crank it to about 50mph flyin home (limit is 25, passed a cop but I think he smelled what was goin on [X(]) Anyways we get to their house, he runs out and I yell and bitch and we start cleaning it up. We get a lot of it cleaned up and decide to go to the car wash to use the vaccume, and I start my car put it in reverse and back out of his driveway. All of a sudden it starts shaking really really bad and the SES light starts flashing. FUCK! We pull back in and it's bairly moving, dropping to about 300rpm's whial tryin to drive back into his driveway and almost dieing (friend said exhaust had a very bad "chugging" sound). I have no idea what it's doing but I know there is misfireing (or NO fireing) for shaking so bad. I try letting it sit and everything and it still won't work and it's too bad to try to limp it home so I park it there and spend the night. This morning I go out to move the car into the road and it still feels a bit rough, but not nearly as bad as it was. The SES light isn't flashing anymore it's just stuck on. I don't have a scan tool so after a whial i'm going to get a ride to Autozone and see if they rent out their scantool so I can figure out WTF is up. So right now it's parked in my friends road with the windows down trying to vent the smell because i'm too afraid to try to drive it home. What should I check? I always thought my car was running a bit rough becuase every so often i'd be at a light and I could feel the car shaking through the seat. No SES light then but once I took off it was fine. I just figured it did it the whole time and I just never noticed it, but now i'm thinking that's not the case. I'm thinking it was the start of whatever problem i'm having right now. First thing I thought was plugs and/or wires, however I just replaced them a few thousand miles ago with ACDelco Rapidfires and whatever the house brand wires are for O'Rilies auto parts. Can plugs/wires just all of a sudden go bad? Friends dad said bad gas but I dunno how, I just toped it last night with Buckey's 93 octane which is what I use all of the time Thanks, please help my car is stranded! Quote
Crazy K Posted January 7, 2006 Report Posted January 7, 2006 more info.... the 96 3.1 powered Gp in your profile? It sound like what happened when my 91 lumina had an injector short out.... but your car is a bit different..... as you car has a seperate circuit for each injector. if One injector jambed and stuck open it may be the cause of the same problem. On mine when it had the probelm the exhaust smelled rich.... Quote
PCGUY112887 Posted January 7, 2006 Author Report Posted January 7, 2006 3100 Powered 96 Grand Prix, yes the car in my profile. Quote
Crazy K Posted January 7, 2006 Report Posted January 7, 2006 when is the last time you had your plugs changed? I recommend getting some basic ACdelco plugs and changing them, and as you pull out the old ones, look for any that smell from excess gas...... However, if they are new, take them out and clean them while looking for a gas soaked one... (don't use bosch or anything else) you may possibly isolate an injector that got stuck this way.... Quote
PCGUY112887 Posted January 7, 2006 Author Report Posted January 7, 2006 I thought I put in the post that I changed the plugs with ACDelco Rapidfires just a few thousand miles ago Anyways I rented a scantool and for some reason now it isn't doing it at all, and I got the car home. I cleared the code and as soon as the engine cools i'm going to pull the plug (it was on cyl2). Quote
Crazy K Posted January 7, 2006 Report Posted January 7, 2006 sorry I'm half-awake. Pulling them out and inspecting them in the event it occurs again, might reveal one plug soaked in gas, and therefore a worn out injector. But since your tool revealed it to be the cylinder 2 plug... On my 91 Lumina, about a week before the injector failed, I had a momentary stall/sputter at speed on the interstate. The Rpm's dropped, the car lurched for about 2 seconds, then everything went back to normal. When it quit, I was about 30 seconds from a friends house. I basically drove down from his house with no throttle (large hill) went around two corners, and was on the interstate on ramp when I first gave it anything more than light throttle and it would not accelerate. As you slowly pressed the accelerator the engine RPM would increase to 1200 RPM, and then decrease and run horrible. Turning on the check engine light. I backed off the ramp and tried to get back to his house... but wound up walking back... He had to push me with his car up to his house. Had to have in towed home... And I discovered what was wrong when i got home...... The number 5 injector, when unplugged, the car would run fine, at least on 5 cylinders.. (the only one of two injectors that are unpluggable without removing the plenum.) Try adding some injector cleaner, it is most likely sticking in the open positon. If it occurs again it may need a new injector on that slot. Where did you rent your scan tool from, and how much? (refundable upon return, or not?) Any why are you runing 93 octane? basic regular should be fine, unless you have some mods??? Quote
Turbo231 Posted January 7, 2006 Report Posted January 7, 2006 Lets try some basics first....get a timing light, check to see if all plugs are getting spark. Free if you have a timing light, not if you don't. Check to see if you have fuel pressure...easy to do once again if you have a fuel pressure gauge, not so much if you don't. Quote
DiscoStudd Posted January 7, 2006 Report Posted January 7, 2006 Flashing SES light on OBD-II = Random cylinder misfire. Had this happen to my old 96 Lumina. Turned out the coilpack that served cylinders 1 & 4 was shot... Quote
PCGUY112887 Posted January 8, 2006 Author Report Posted January 8, 2006 Ok guys, here is what I got. The code was a Cyl 2 misfire, forogt the # I don't think it really matters. I went ahead and inspected the plug, all looked good, no gas no smell but I replaced it anyways. I also checked out all of my wires and unhooked/rehooked them. Then I tested my coilpacks with a mutlimeter and their all fine. So I drove around some more after this seeing if I could feel anything weird, nothing. After washing my car and cleaning the interior really good (ew the smell was bad) i've been redlining it around every other corner to try testing it and nothing happened. I went ahead and dumped in some Seafoam injector cleaner just to be sure. I'm running 93 octane because I got in an arguement with a few people that 93octane gives better MPG than "normal" gas so I decided to run a test for a few months to see who's right (so far there is no diff). I'll probally just end up sticking with the 93 through since I plan on getting a PowerTuner when it starts warming up and with the extra timing i'll need it. Turbo231 never though about checking fuel pressure, thanks for noting it. Oh and about the scanner, it was $180 from Autozone (that's how much the scanner costs) however with all of their tools that you can rent, you just return it unbroken and they give you all of the cash back. I guess they figure if your renting tools, you have a problem, and you'll spend the money there to get the stuff to fix it. Right now it just seems like my car got pissed off at the barf and decided to retailliate Quote
1990lumina Posted January 8, 2006 Report Posted January 8, 2006 W's have a tendancy to do that...my tranny will hate for for a couple days by shifting wierd after I go WOT off the line lol... Quote
digitaloutsider Posted January 8, 2006 Report Posted January 8, 2006 You have absolutely no reason to be running 93. You're wasting your money, and it certainly wouldn't help with a misfire condition. You do understand that the octane rating is the fuel's resistance to burn, correct? Quote
PCGUY112887 Posted January 8, 2006 Author Report Posted January 8, 2006 Yes I do... did you not even read my above post? I'm running 93 octane because I got in an arguement with a few people that 93octane gives better MPG than "normal" gas so I decided to run a test for a few months to see who's right (so far there is no diff). I know it's a waste of money but I think it's worth a few extra $ to rub it in a few friends faces Quote
Supreme Cutlass Posted January 8, 2006 Report Posted January 8, 2006 Yes I do... did you not even read my above post? I'm running 93 octane because I got in an arguement with a few people that 93octane gives better MPG than "normal" gas so I decided to run a test for a few months to see who's right (so far there is no diff). I know it's a waste of money but I think it's worth a few extra $ to rub it in a few friends faces pwn3d Quote
fastbird232 Posted January 9, 2006 Report Posted January 9, 2006 Yes I do... did you not even read my above post? I'm running 93 octane because I got in an arguement with a few people that 93octane gives better MPG than "normal" gas so I decided to run a test for a few months to see who's right (so far there is no diff). I know it's a waste of money but I think it's worth a few extra $ to rub it in a few friends faces pwn3d Agreed. Money very well spent. Quote
terryk2003 Posted January 9, 2006 Report Posted January 9, 2006 well...i know some friends running 93 octane who said they get better milage with it as well...which, i belive you do BUT the extra mile or 2 per gallon won't offset the price of the 93 octane...so i still think they're stupid and i use the cheap shit... as for your problem...electical parts do wierd things sometimes...just cause your coil OHMS alright still doesnt mean its good...i guess you'll just have to wait and see if it does it again...as for the puke...i'd be pretty pissed if someone yacked in my car... Quote
GP1138 Posted January 9, 2006 Report Posted January 9, 2006 It's very hard to "test" a coil pack. If I suspect one to be bad, I just go overboard and replace them all with a known good set + ICM. Quote
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