i need help

[JK.]

hello everyone i need help i cant tell if its a miss fire or a air fuel mixture thing but i just changed my headers to long tubes and put in a cold air intake but when im driving once it hits 3k it sounds like its dropping cylinders but once i rev it past it it’ll run and drive fine its a 94 mustang Gt 5.0. i need to know asap

 

[Noobz347]

Pull ECU codes.

 

[JK.]

Pull ECU codes.

the issue is that obd 1 and 2 don’t work on my car and i can’t figure it out

 

[Noobz347]

Your car is OBD-1.

https://www.amazon.com/INNOVA-3145-Ford-Digital-Reader/dp/B000EW0KHW/ref=sr_1_6?crid=2H9LL2CFI2M3G&dib=eyJ2IjoiMSJ9.H8j8GUUmy-m3k31INdlJywo_a4Thzc7y2UAP3p-iTqN6AqmuEXmesymg36rmNCuKXXp9zAq8APlqLL1ZMhuVL02wWFfyrNnGLLnzlgS4LyRN4jBLKKXV4C23debusagSw76qswMdbOowXDBo-0_TW3wUtfPqih972WSfhjfys_m5OCvxdfZ3HuMLJRTVyhMXkY1NdbnjSrp5wgx_rw0e3IbeWqlgyNmr1-_5Z2a20-3ZZDjX8XlVvWcT2nFUTiIXoxvSlxWL9dcCPw4CI3_R44mlnB3w-Nk77_g9k_-4Wzs.I7mCn_OKmnEEbEa2rrc6KwmNs7h4ofhBdsFz9G-aGfo&dib_tag=se&keywords=obd1+scanner&qid=1792880273&sprefix=OBD1%2Caps%2C188&sr=8-6

You can use a cheapo scanner from Amazon or use the method below:

Electrical Thread 'How To Pull Codes From EEC-IV In 86- 95 5.0 Mustangs'

Jan 27, 2016

@Noobz347 - The code dump procedure isn't in the sticky - you may want to add it...



Dump the codes: Codes may be present even if the Check Engine Light (CEL) isn't on.

Dumping the computer diagnostic codes on 86-95 Mustangs

Revised 26-July-2011. Added need to make sure the clutch is pressed when dumping codes.

Codes may be present even if the check engine light hasn’t come on, so be sure to check for them.

Here's the way to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for...

• jrichker
• Replies: 12
• Forum: Fox 5.0 Mustang Tech

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