i have a 1995 f150 that will idle just fine untill you give gas then it acts like running out of gas. i have changed fuel filter,pump,pickupscreen & maf sensor put vacuum gauge on shows no leaks no obstructions good timming. Just had motor rebuilt trans rebuilt. motor has 20,000 miles trans has 12,000 got to much $ in it to get rid of it any suggestions on what to do next also put fuel pressure gauge on it said was getting 32 psi at idle cant tell with rpms up it dies did koeo test only got 111 stored codes 211 334 koer got 111 stored 225 & 311. Any ideas?

 

Codes:
111 - All systems OK
211 - PIP signal
334 - Electronic vacuum regulator
225 - Knock sensor
311 - Pulse air/thermactar air system faulty

These may or not be the wrong codes, just pulled them off this page:
EEC-IV Diagnostic Trouble Codes - Diagnose problems in your Ford

I'd go after PIP first.

 

does the 1995 5.0 have a knock sensor? If so where is it at?

 

Not sure if '95's have it for sure but here is where they are otherwise:







Rear passenger side of engine, behind intake manifold, bolted into cylinder block.

They can also be mounted right in the middle of the drivers side of the lower manifold, but I believe that's for older 302's.

 

thank you MR KROGOTH

 

To add a little more info....if you did not snap the throttle hard enough you can get Code 225. Even if you are under 6,000 ft. elevation.

Cut from my Ford Manual:
DTC 225 indicates the Knock Sensor (KS) signal to the PCM was not sensed during the Dynamic Response Test in the Key On Engine Running Self-Test.

At altitudes of 6,000 ft and higher, the test may fail. If that happens, repeat the Goose Test several times. If DTC does not clear, proceed with this Pinpoint Test.

The engine will run fine without the Knock Sensor connected.

Code 211 indicates the PIP signal is erratic, that can definitely cause driveability issues.

What was the fuel pressure when trying to accelerate? 32 PSI KOER at idle is fine, but it should go to 40-45 when the engine is under load/low vacuum conditions.

 

I will run that test again and let you know on the fuel pessure as soon as wife gets back with car tester is in it thank you

 

I am getting the 311 code because in the back of the motorwhere the bypass tube bolts to the head the holes got welded closed dont know why he did that i did not notice untill i had motor in truck called the builder he said it would not hurt any thing is this true? We do not have emission tests here in miss

 

That is exactly why you are getting Code 311. If you have factory converters then you could potentially shorten their life. The Thermactor injection system feeds air to the converter at cold start up to speed up the warm up time. If you keep your truck tuned up, I do not think there is a problem.

 

ok i did do fuel pressure test again it was 32 at idle and if i give gas it does go up to around 42 before it dies took the vacuum line off fpr and pressure jumped up about 7 more

 

just to let everybody know it turned out to be the distributer was bad the bearings where bad and wobbling so it was an easy fix once figured it out thanks to everyone

 

Hence the reason for Code 211 as I pointed out before. Glad you got it resolved.

 

Just curious as to what you did to fix the distributor problem. Replaced the entire distributor or just the faulty bearings?

 

I've bought 2 rebuilt distributors. Neither had any issues.

OP: Glad you got it fixed.