ls1 running too rich.
02-20-2011, 06:15 PM
#1
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ls1 running too rich. hello i have an ongoing issue with my car for about 6 months and have not been able to spot it it runs too rich my mods are MS3 Cam, LT Headers, 4400 Stall, 4.10s it has a speed density tune and never smelled bad even when i had a dumped bullet, now i run a flowmaster to cover some fumes but still gets me high while driving. Now i have replaced the following suspects: MAF, MAP, IAT, TPS, TEMP, and O2 Sensors , plug and wires, cleaned injectors and cleaned IAC and still too rich, ive notice it fouls my plugs with a little ring of oil..
02-21-2011, 07:06 PM
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the person that had the car said the sd tune worked out better than a maf tune, i have a maf and 2 o2 sensors, i replaced the maf recently cus it was detected as too high signal in ecm via a snap-on scanner but had no ses light..if i disconnect the maf it revs up and down
02-21-2011, 10:11 PM
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everything was fine with this current tune, dumped bullet and no fumes at all. it just started smelling like raw gas and increasing over time..looks like it spits raw gas through tailpipes
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02-23-2011, 10:16 AM
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This. Coils are either 100% working or dead and you'd probably have some codes being thrown. Why is there a MAF on the car if it's a SD tune? Get that off, and even if you think the tune is good, get a graph of it (how it is now) and post it up here.
02-23-2011, 11:06 AM
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ok so tunes just usually go bad or what? cus like i said ive always ran the maf and there was no problems it just suddenly started occuring, so to my understanding tunes dont last forever?
02-23-2011, 11:11 PM
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02-24-2011, 05:00 PM
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ok update: i got a hold of the tuner, and said there was no maf needed, so the p0103 i had on will always be on, he said might be an open injector leaking, so im gonna take it to him next week.
03-01-2011, 08:01 PM
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SOLVED: ok i just finished working on it, turns out it was the dumbest, and sneakiest of all.. it was one of the pins from the 7th coil. i found out by plugging a spark tester indicating no spark, and when i took it off i saw that one of the pins from the coil was dented and not connecting.. i guess since the other 3 were connected the ecm never caught it..
03-01-2011, 08:29 PM
#14
SOLVED: ok i just finished working on it, turns out it was the dumbest, and sneakiest of all.. it was one of the pins from the 7th coil. i found out by plugging a spark tester indicating no spark, and when i took it off i saw that one of the pins from the coil was dented and not connecting.. i guess since the other 3 were connected the ecm never caught it..
05-01-2014, 06:12 PM
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Hey man I have the same setup on my ws6 only getting 10 mpg and I feel this may be my issue I did a full tune up my love data reads ok and it has been tuned by a ls1 junky how was your fuel economy when this happend and what is it now? Also how did you use a spark plug tester on a coil pack?
