Strange...
Thread Starter
TECH Veteran
iTrader: (4)
Joined: Aug 2006
Posts: 4,821
Likes: 0
From: San Marcos/Plano, Texas
Strange... Ok so i have been running lt's and ory for a little over a month now and as i was driving down to school it started chugging whenever i would barely put the accelerator down, does this in all gears until i get out of the 1k-2k rpm range. I havent gotten a tune yet so is that why it's doing this? Also when i was driving down when i refilled up for gas my service light started blinking and my car started acting funny, it did this for maybe 6 min than it went away 
. Anyone know what the problem may be?
. Anyone know what the problem may be? I'm just going out on a limb here I could be totally wrong(if I am I'm sure someone will bash on me) but I've heard when the service engine light blinks that its a miss fire and that would sort of go hand in hand with that chugging if it was miss fireing and if that was the case.....spark plugs, wires ETC.
Thread Starter
TECH Veteran
iTrader: (4)
Joined: Aug 2006
Posts: 4,821
Likes: 0
From: San Marcos/Plano, Texas
no i didnt but i went to this broken down gas station and put in 93 so i dont know. Trust me im not that naive d to do that.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Thread Starter
TECH Veteran
iTrader: (4)
Joined: Aug 2006
Posts: 4,821
Likes: 0
From: San Marcos/Plano, Texas
my fuel pressure is fine. You know what im thinking..i let my mom drive my car one day and i think she put in 89 octane
now i cant fill my gas tank all the way full...holy **** what the hell
now i cant fill my gas tank all the way full...holy **** what the hell 
On The Tree
Joined: Jul 2007
Posts: 101
Likes: 0
From: Kansas City, Kansas
So if you fill the gas all the way it missfires but if it isnt all the way full it doesnt?
My first car was a pos and did this thing once where it wouldnt go faster then like 5 mph without missfiring and dying. This was after I did plugs and wires and all that stuff. Someone told me to replace the fuel cap bc it has a vent in it. That fixed my problem.
My first car was a pos and did this thing once where it wouldnt go faster then like 5 mph without missfiring and dying. This was after I did plugs and wires and all that stuff. Someone told me to replace the fuel cap bc it has a vent in it. That fixed my problem.
Leaking gas-cap/EVAP would throw a code, and the SES light would be on solid.
If you (or your mom) put 89 octane in it, and that's causing the problem (doubt it though. The ECM should do a fall-back to the low-octane tables), you could use an octane booster to get it up to 93 octane.
When your mom filled the car (or when you do it), did she/you top off the tank?
You shouldn't top off the tank on newer cars. There's a charcoal filter that you'll saturate with fuel if you top them off, and that'll cause you not being able to fill the tank completely.
If you (or your mom) put 89 octane in it, and that's causing the problem (doubt it though. The ECM should do a fall-back to the low-octane tables), you could use an octane booster to get it up to 93 octane.
When your mom filled the car (or when you do it), did she/you top off the tank?
You shouldn't top off the tank on newer cars. There's a charcoal filter that you'll saturate with fuel if you top them off, and that'll cause you not being able to fill the tank completely.
Thread Starter
TECH Veteran
iTrader: (4)
Joined: Aug 2006
Posts: 4,821
Likes: 0
From: San Marcos/Plano, Texas
no it wouldnt fill up all the way for her, im guessing it might be my cap or something wrong with the evac tube? I dont know im going to check it out tomorrow.
