Think i found the prob ,
When i disconect 1 ignition coil and start the engine , it runs bad but it goes .
When reconecting that coil again and disconect the other one , it gives me backfires and runs completly different .
My opinion is that 1 of the 2 coils are defect .
I ordered one and on wednesday i wil have it .I let you know if its fixed .

thx

 

P1409 is an EGR code. Here is how to check that:

http://www.2carpros.com/forum/1999-f...-vt340938.html

 

Hey glc,

thx , i wil check that .

Thx

 

Hello Glc ,
I have replaced the ign coil , but no succes lol .
i have folowed your egr diagram but do you have a electric wiring diagram from sutch a ford f150 from 97 .
i have mesured the ohm from the coil and thats ok . but for de pcm , are those wires correct . I have seen that they are talking about a ford cortina ?

Thx
witte

 

A 97 F 150 what ?

Fill your info in top right corner. Post WHAT diagram, we have 3 different motors in our trucks and their not all wired the same.

 

Hi Jbrew

I filled in the info ,

Ist a Ford F150 from 1997 . 4.6cc V8

I'm looking at the wiring diagram from the egr solenoids because i have always backfires and trouble code P1409 manufacturer specific code .


Thx

 

You check the wires at the sensor. Here, this should help -

http://www.fordscorpio.co.uk/egrmonitor.htm

The EVR is a simple fix, they usually break right at the connector. Check your VREF (Volt Referece) / Then check the sensor operation itself. There's a foam filter under the cap, but remember 1409 points to power.

Why did you replace a coil ?

 

I replaced the coil because on deconecting 1 the engine goes and no backfire's . when deconecting the other one and reconecting the deconect one , the engine gave me backfires .

 

thx
I have check the Vref , i got on the conector from the EVR 13v , i have seen that the hose DPFE intake manfold side was closed ( hose was in bad condition ) so i replaced the hose already but still the same prob . now i did a test drive whit it and when you accelerate slowly the car goes . when accelerating to heavy it backfires . i also have seen after the testdrive that i have also the codes p0135 o2 sensor heater cirquit , p0155 also o2 sensor heater cirquit and P0171 system to lean bank 1 .

Thx

 

Hi all ,

problem solved , car driver back normal , no more backfires :-)

cya