LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Having Trouble with my 95' Formula

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Old Oct 28, 2009 | 11:46 AM
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Default Having Trouble with my 95' Formula

I have a stock 95' Formula and I'm having acceleration issues with it. The car sat for a year until I finally fixed it this July. It will run normally but sometimes when you accelerate, the car will hesitate and bog down. Only does it at times. It has an SES light and I've already replaced the MAF sensor and the TPS. I don't have a scanner that reads this particular car so I'm second guessing this thing. Any ideas that could guide me in the right direction?
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Old Oct 28, 2009 | 11:48 AM
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Originally Posted by Mromo77
I have a stock 95' Formula and I'm having acceleration issues with it. The car sat for a year until I finally fixed it this July. It will run normally but sometimes when you accelerate, the car will hesitate and bog down. Only does it at times. It has an SES light and I've already replaced the MAF sensor and the TPS. I don't have a scanner that reads this particular car so I'm second guessing this thing. Any ideas that could guide me in the right direction?
You need to get it scanned. Somehow, some way. Stop throwing parts at it until you can figure out what's wrong. Having it scanned is step one.
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Old Oct 28, 2009 | 12:00 PM
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^^ Yup. All you're doing is throwing money at it for nothing at this point.
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Old Oct 28, 2009 | 12:20 PM
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Start with simple things like checking your fuel pressure and plugs/wires. If it sat then it's possible the wires are now cracked and causing a grounding issue.
What do you mean when you say you fixed it? What was done?
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Old Oct 28, 2009 | 12:32 PM
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If its OBD2, get it scanned. Figure out the code, then go from there. Also, when it sat, did you put fuel stablizer in the gas? You may have some bad gas in the system.
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Old Oct 28, 2009 | 12:52 PM
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I dont mean to high jack your thread Mromo77. My cousin has a 1995 formula also and We cant seem to find a damn scanner that will work on this car.. We bought the best scanner O'Reilly's sold. It still could not scan the 1995 formula..
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Old Oct 28, 2009 | 12:55 PM
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Originally Posted by McAllenSuperSport
I dont mean to high jack your thread Mromo77. My cousin has a 1995 formula also and We cant seem to find a damn scanner that will work on this car.. We bought the best scanner O'Reilly's sold. It still could not scan the 1995 formula..
Was it OBDII? You will have to get a OBDI scan tool for it to work.
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Old Oct 28, 2009 | 01:00 PM
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I believe it has a OBD2 port. This scanner can scan obd1 and 2 systems. for some dumb reason it could not scan 1995 camaro/firebirds.. We cant find any damn scanner to scan this car..

Last edited by McAllenSuperSport; Oct 28, 2009 at 01:22 PM.
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Old Oct 28, 2009 | 01:14 PM
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like tdevil55 said you may have some bad gas or alot of moisture in the fuel lines.. try some seaform to dry up moisture and but a can in the crank and see if that works.. that at 8.99 x 2 = 17.98 lol maybe the cheapest fix you need to do oh yea then the oil change plugs and wires... you do the math now
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Old Oct 28, 2009 | 02:00 PM
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95 models have what is commonly called the OBDI.5 port (half OBDI, half OBDII). In order to get it to work, you can jump the pins like so:

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Old Oct 28, 2009 | 03:03 PM
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We already tried that also.. It still didn't work..
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Old Oct 28, 2009 | 04:42 PM
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I wrecked the car a year ago, i finally collected all the parts and finished it, never had a problem before until now. I would have already scanned it as step on obviously but since the car is an off year from true obd 2, mine won't pick up the car
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Old Oct 28, 2009 | 05:44 PM
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Originally Posted by McAllenSuperSport
We already tried that also.. It still didn't work..
You need to get a schematic to establish whether or not the data port is getting voltage. Shoebox's website should have what you need along with a volt meter.
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