im out of ideas

**ice97ta** · 07-10-2007, 11:25 AM

about a week ago my car started hesitating real bad, now when i am driving it, even at wot, it feels like i am letting off the gas. i dont really know how to explain it, but it will run just fine, then out of nowhere it starts doing it. i just changed the fuel filter and the spark plugs and wires are only a few months old. i just cant figure out what it is.

if you have any ideas or questions let me know.

**Speedy_Gonzales** · 07-10-2007, 11:27 AM

maybe water in the gas ???

**ice97ta** · 07-10-2007, 11:28 AM

i ran the tank out when i changed my filter, i just got back from gassing it up again, i put about 30 miles on it when i put the new gas in it. thanks for the help though.

**Speedy_Gonzales** · 07-10-2007, 11:32 AM

Originally Posted by ice97ta

i ran the tank out when i changed my filter, i just got back from gassing it up again, i put about 30 miles on it when i put the new gas in it. thanks for the help though.

if it were me b4 I did anything major I would run some fuel injector cleaner through it

**ice97ta** · 07-10-2007, 11:33 AM

i will try that, ill do it today then its getting parked until i get some more ideas.

**ice97ta** · 07-10-2007, 11:39 AM

now it seems as if it only does it when i turn right, it will do it all through straights after a right turn, then magically it will stop.

**Speedy_Gonzales** · 07-10-2007, 12:24 PM

Originally Posted by ice97ta

now it seems as if it only does it when i turn right, it will do it all through straights after a right turn, then magically it will stop.

some other guys will see this and maybe have some other ideas .....gl

**ice97ta** · 07-10-2007, 12:25 PM

thanks

**Steve L** · 07-10-2007, 02:22 PM

Originally Posted by ice97ta

now it seems as if it only does it when i turn right, it will do it all through straights after a right turn, then magically it will stop.

Did the injector cleaner make any difference?

If turning just one way causes it, it seems like it is a fuel flow problem. In the older T/A's ('70-80's) they used to have a sock filter in the gas tank itself...do the new ones also? If it does, that might be the problem. They had a tendancy to get clogged, or get sucked up into the line and cause hesitation like you are feeling.

Just a stab in the dark.

**ice97ta** · 07-10-2007, 02:25 PM

havent been able to run it through yet, will try tonight. talked to a friend, he thinks it might be the Mass airflow sensor but i will try anything right now.

**GinoRamAir** · 07-10-2007, 08:14 PM

its the mass air

**ice97ta** · 07-11-2007, 06:42 AM

i sure hope your right, i ran some injector cleaner through it and nothing changed, so i am going to try the MAF now

**SMOKIN WS6** · 07-11-2007, 07:11 AM

If it does that when you step on the gas pedal then it might even be your fuel pump. That happened to me a while back it felt like if it would go dead whenever i floored it!

**SSTODD** · 07-11-2007, 07:33 AM

The dreaded opti-spark maybe??? They have a notorious reputation.

**ice97ta** · 07-11-2007, 09:36 AM

Originally Posted by SMOKIN WS6

If it does that when you step on the gas pedal then it might even be your fuel pump. That happened to me a while back it felt like if it would go dead whenever i floored it!

the thing is that it does it no matter how hard or soft i push the pedal.

**Bouvers** · 07-11-2007, 10:07 AM

I would go with MAF before anything, I don't think its the optispark from my experience I feel that they only tend to hesistate like that at very high rpms not down low. However, I'm also saying that because optispark is an expensive fix and i'd try a few other things first. good luck keep us up to date.

**ice97ta** · 07-11-2007, 10:08 AM

i will definitatly let you guys know what it is when i fix it, thanks.

**Rob00Taws6** · 07-11-2007, 04:12 PM

Your problem definitely sounds electronic in nature. Personally I have never worked on an OBD II LT1. But I did have a similar problem with my 89 GTA. I had changed the cam and went with a lingenfelter/accel plenum, runners, and intake manifold. A check engine light popped up and the code was for a burn off relay for the MAF. So I changed the relay, and not to soon after my MAF kicked the bucket. So I dropped the money and changed it. About three days after changing it I would get these sudden burst of hesitation when the car was cruising and when I held the RPMs at a constant level. The RPMs would oscillate, the worst thing was that there was no codes or engine light so, I had no clue to what was fouling out. So after checking for a vacuum leak and changing out O2 sensors, and TPI sensors I went back to the MAF sensor, went back to the parts store to find out that I was given a sensor calibrated for a 6 cylinder car. I went to a granatelli MAF sensor for a l98, a bear to adjust but a good product, and the car ran well. Honestly, I would check for a vacuum leak, and then go through your sensors, something has to be fouled up and giving the computer a wrong reading, I would even check your connection for your sensors make sure there is no corrosion in the wiring.

**ice97ta** · 07-11-2007, 05:09 PM

thanks for the insight, i will be getting a new maf tomorrow so i will do that first and see what happens

**cailey37** · 07-11-2007, 05:31 PM

From what you're saying I dont think it's the MAF......to me I'd be leaning more towards the Opticrap. How longs it been since you did anything with it????? And since you live in a coastal city that nice salt air you have will do wonders on the opti.........take a look at that...

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