04 Redline, sudden onset misfire...
#22
03-23-2015, 10:48 AM
I'd hold off on sending your 60# injectors for now... I'm now leaning toward spark...
Reasoning: code is a recurring P0301, meaning cyl 1 is most heavily affected... All the plugs looked the same, meaning fuel distribution is the same, or nearly so, and I don't believe that a fuel starvation or flooding issue would throw a P0301, but a P0300 instead... I would just about trade the high-rise on the back of the car for a solution to this misfire problem...
#23
03-23-2015, 06:21 PM
Just a reflection of the cars current condition:
Fuel economy is up. That's right, I said UP. The car forces me to stay away from the throttle to avoid the miss, instead of burying my foot and listening to the whine... And although my RPMs are generally higher(I have to stay between 3 and 4.5k on the hills), the throttle input is so low that fuel usage is lower than 2.5k and boost...
The car is dreadfully slow with the miss... Overtaking, a task made easy with the boost, is now nearly impossible and/or painfully difficult... Top speed, if I am in a serious hurry, is about 130km/h... This is not interstate driving with no corners, but two lane roads where your speed is limited by the length of the straightaway...on these same roads before, the car was fully capable of 180-200km/h... Not that I've hit that, I always shut down at 160, but there was always lots of room to keep pushing...
Fuel economy is up. That's right, I said UP. The car forces me to stay away from the throttle to avoid the miss, instead of burying my foot and listening to the whine... And although my RPMs are generally higher(I have to stay between 3 and 4.5k on the hills), the throttle input is so low that fuel usage is lower than 2.5k and boost...
The car is dreadfully slow with the miss... Overtaking, a task made easy with the boost, is now nearly impossible and/or painfully difficult... Top speed, if I am in a serious hurry, is about 130km/h... This is not interstate driving with no corners, but two lane roads where your speed is limited by the length of the straightaway...on these same roads before, the car was fully capable of 180-200km/h... Not that I've hit that, I always shut down at 160, but there was always lots of room to keep pushing...
#25
03-24-2015, 11:24 AM
In not thinking the problem is plugs, after all, it ran great with the 4644s that came in it(1 step colder than stock), and that would only likely affect the car under heavy boost, and would likely generate a random misfire code, not one constrained to cylinder 1.
I really think I just need a coil(maybe a full set?)... Here's my reasoning...
It misses under load, but not at idle, which would point to insufficient energy to ignite the mixture under load, but enough to idle/cruise...
I removed and cleaned the plugs(going to be a ritual until I get her tuned), and they looked much the same... Keep in mind, they were still fouling, and had a bronze color on the electrode, all of them... Keep also in mind that it had been running worse today than it had been, barely struggling to hit 100km/h, and having quite a time on the hills...I cleaned and narrowed the gap(not sure what to, I didn't have the gauge handy, but it did look narrower), and the car ran better, still missing badly, but less bad than just half an hour ago before the work... This is quantifiable by being able to squeeze in(not all at once, it's still picky at low revs) 47% throttle in 2nd before cutting out... I think I hit 2 or maybe 3psi of boost during this time... Also as a proof, during this test I achieved a speed of about 140km/h...
I still don't know how to take the coils completely off though, or I would switch 1 and 2 and see if the misfire follows...
I really think I just need a coil(maybe a full set?)... Here's my reasoning...
It misses under load, but not at idle, which would point to insufficient energy to ignite the mixture under load, but enough to idle/cruise...
I removed and cleaned the plugs(going to be a ritual until I get her tuned), and they looked much the same... Keep in mind, they were still fouling, and had a bronze color on the electrode, all of them... Keep also in mind that it had been running worse today than it had been, barely struggling to hit 100km/h, and having quite a time on the hills...I cleaned and narrowed the gap(not sure what to, I didn't have the gauge handy, but it did look narrower), and the car ran better, still missing badly, but less bad than just half an hour ago before the work... This is quantifiable by being able to squeeze in(not all at once, it's still picky at low revs) 47% throttle in 2nd before cutting out... I think I hit 2 or maybe 3psi of boost during this time... Also as a proof, during this test I achieved a speed of about 140km/h...
I still don't know how to take the coils completely off though, or I would switch 1 and 2 and see if the misfire follows...
#27
03-24-2015, 12:05 PM
Thanks so much for the info, in advance! I've been disappointed, and my wife upset, since the car started acting up...
#28
03-24-2015, 02:18 PM
How To Swap Plugs - Saturn ION RedLine Forums
That's on how to change the spark plugs, but explains the coil pack with pictures.
I do have a set, but from what I just searched, are different from the ones in 04 (theyre from an 07).
I can still send em your way if you want to try them out.
That's on how to change the spark plugs, but explains the coil pack with pictures.
I do have a set, but from what I just searched, are different from the ones in 04 (theyre from an 07).
I can still send em your way if you want to try them out.
#29
03-24-2015, 07:39 PM
Are they from another redline? Rock auto lists the coils for the LSJ as the same part number, 04-07, but I can only assume that LE5 coils won't work...