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Discussion Starter · #1 ·
hi i have a 1993 mustang with 2.3l n/a. i have put all new icm , coil packs and cranksensor on it but it still wont run right. it idles fine but while drivin it acts like it runnin out of gas under a load around 1500 to 2300 rpms. i even put wires and fuel filter. can anyone help me please
 

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scan it for any codes, it should be making a code about something. do it with engine off and do the engine run test. you can grab a code scanner at any auto store for about $30.
 

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Discussion Starter · #3 ·
I've done that and it came up with o2 sensor reading lean and injector pulse width longer than expected. Cleared them and the check engine light hasent come back on since. But still the same problem
 

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With a fuel pressure gage, turn the key on and off a few times without starting the engine. The gage should remain constant for a few minutes without losing pressure.
 

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Discussion Starter · #12 ·
i checked the fuel pressure again and engine off it holds at 36 psi and with the car running it reads at 31 psi is this right
 
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