At Whits End

I have a 95 Taurus that is a crank but no start. I just replaced a bad fuel pump and it still won't start. I have 13 codes in the computer when I did a slow code pull. The codes are 116, 636, 114, 335, 172, 173, 211, 326, 327, 332, 336, 542, and 556. I need help!!

Welcome to the forum!

You need spark, compression, and the correct air/fuel ratio. Have you confirmed that you have all of these? Did the car start before you replaced the fuel pump? Have you checked the fuel pump inertia cutoff switch?

-Rod

Shorod,
Yes, I have checked the inertia shutoff swith, spark, and compression. I have plenty of fuel, but it sounds like there is no spark. When I check for spark, I definitely have a good spark there. I don't remember the exact compression numbers. The codes have said O2S b1 is lean, and then another one says it is rich. I see 5 codes that deal with the EGR System, one that deals with the fuel pump ground at PCM, and one that deals with the fuel pump primary circuit malfunction

I would spray some starting fluid in the intake and see if I could get a slight response out of it. This would determine if you have good spark or not.

Before spraying starting fluid or throttle body cleaner, pull a couple of spark plugs and see if they are wet. If so, you may have the cylinders flooded by now.

Also, make sure the battery is fully charged. If the system voltage is dropping down to around 9.5 volts when cranking the engine the computer may not be behaving nicely.

Did the car start before you replaced the fuel pump or have you been fighting this issue for awhile?

-Rod