 Fuel Response |
 Sep 21, 2009 - 1:52 PM
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Enthusiast  Joined Jan 20, '08 From East Coast Currently Offline Reputation: 1 (100%)  |
I had a diagnostic and full service inspection on my Celica done from a local Toyota Dealer. It passed with flying colors so I know there's no large concerns at hand that would cause my car to have a fuel issue. Anyway, here's my issue:
Whenever I am driving around (city driving that is), right after I shift and then press the accelerator pedal, my car lightly hesitates, it's not a smooth transaction kinda deal. It started happening about 3 or 4 months ago but now it seems routine. Doesn't matter what gear I shift into either. It's a very light (but noticeable) hesitation (under normal driving). If I were to accelerate it hard, there's no issue at all. Only when normally driving and shifting. By the way, I shift gears when I reach 2.5K - 3K RPM under normal driving. I really don't want to pay a mechanic to spend hours troubleshooting if I can help it. What would cause this issue? This post has been edited by 6G96GT: Sep 21, 2009 - 1:54 PM |
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Sep 21, 2009 - 11:11 PM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
It depends on how heavy your foot is, ofcourse the engine is going to lug with a heavy foot when your gear change drops you below 2k.
Even my GT4 with its stupidly long gearing/final drive ratios (and turbo lag of a steel wheel) can still drive below 2k. And I bet you guys with the 5S-FE have alot more torque under 2k than I do and alot less weight and no 4WD. Let the clutch out smooth, and ease onto the gas and you will have no problem driving under 2k (aslong as you're not going uphill) If there's a hesitation then somethings obviously wrong. Check your oil, spark plugs & filters. Easy! PS. Personally I wouldn't add anything to the fuel system. Some additives can block injectors and fuel filters. Go for premium fuel (doesn't have to be anything near race fuel, but something above standard unleaded is good). We have RON 91, 95 and 98 (100 is race fuel), 95 is what I would pick (I think you guys call it 92 or 93) for an FE head, and 98 for a GE head. PPS. Does the hesitation feel like knock sensor at work? I don't know how I would describe this to you but you would get hesitation like you've described if you had a 3S-GE running 91 RON. This post has been edited by delusionz: Sep 21, 2009 - 11:54 PM -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
Posts in this topic
6G96GT Fuel Response Sep 21, 2009 - 1:52 PM
blu94gt You're shifting at 2.5k? That's too low, ... Sep 21, 2009 - 6:28 PM 6G96GT Really? I've always shifted at that range. Wha... Sep 21, 2009 - 9:45 PM 6G96GT Good info, thanks guys! Well, I run top grade ... Sep 22, 2009 - 6:40 PM rdaharry Have you looked in the throttle body for a build u... Sep 22, 2009 - 9:36 PM 6G96GT I'm going to check out those spark plugs this ... Sep 22, 2009 - 10:30 PM alltracman78 It might just be that your not smooth enough on th... Sep 26, 2009 - 10:35 PM delusionz I know what you're talking about alltracman an... Sep 26, 2009 - 10:42 PM domyz It's perfect to shift under 2500rpm what are y... Sep 27, 2009 - 3:26 PM
blu94gt QUOTE (domyz @ Sep 27, 2009 - 3:26 P... Sep 27, 2009 - 11:43 PM 6G96GT Well, I checked the throttle body, looks good. I f... Sep 28, 2009 - 6:27 PM GriffGirl QUOTE (6G96GT @ Sep 28, 2009 - 4:27 ... Oct 1, 2009 - 6:05 PM supaneko Yikes...4,000rpm?!?! Is this something th... Sep 29, 2009 - 9:24 AM delusionz Who has fun chopping their power down right when i... Oct 1, 2009 - 3:53 AM 6G96GT I meant I haven't changed the oil in my car ... Oct 2, 2009 - 7:43 PM |
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