97 ford ranger/check eng. light on/P1443 DTC

Check the short length of vacuum hose between the purge flow sensor and the canister purge solenoid. There is a metal nub, part of a bracket of some sort, that this hose rests up against. Over time from engine vibrations, a hole wore through the hose where it was rubbing against the nub. It was hard to notice at first since the part of the hose you can see looks ok, but the hole is on the underside. I had P1443 and replacing this hose fixed it, took 2 minutes.

(P1443 Evaporative Emission System Control Valve (low/no flow)) fairly simple repair just buy new parts not wrecking yard. Google how to fix this code .

We are assumin gthat you are talking about DTC P1443 - Evaporative Emission Control System - Vacuum System - Purge Control Solenoid or Purge Control Valve fault.

Best guess without pinpoint testing would be the purge flow sensor. This is the most common failure for this code but can be caused by anything that would limit flow across the sensor when flow is commanded by the PCM restricted cannister,stuck or plugged cannister vent solenoid,etc....

On the base model it is located in the purge line between the carbon cannister and the purge solenoid. See pic below for base model diagram(click HERE for zoom)...





Click HERE for zoom...



If yopu need additional details, just Contact Us Here.

Hope thie helps.

P1443 is the Evaporative Emission Control System Control Valve. Any time you get this code always check your gas cap. If it is not installed all the way, or leaks, it can cause the evap emission code to come up. If the cap is okay...

The problem is probably caused by the Canister Purge Assembly. This assembly connects the intake manifold to the charcoal canister and the assembly is made up of hoses, a valve and a sensor. On the 1997 Ranger, it is located near the front of the engine compartment on the driver's side (the canister is right behind the driver's side headlight). Apparently, if there are any cracks in the hoses, or if the valve or the sensor wears out, this will cause the check engine light to come on, and return the P1443 code.

Part numbers for the canister purge solenoid/flow sensor assemblies:

F57Z-9C987-AB Canister Purge Solenoid/Flow Sensor
Assembly - 2.3L F57Z-9C987-CA Canister Purge Solenoid/Flow Sensor
Assembly - 3.0L F57Z-9C87-BA Canister Purge Solenoid/Flow Sensor
Assembly - 4.0L

Part cost = $65 to $100 depending on engine size - good luck :O)

P1443 = A problem with the EVAP purge flow system
Continuous Memory Diagnostic Trouble Code (DTC) P1443 indicates an incorrect Evaporative System Purge Control Valve flow.

Possible causes:
-- Obstructed, open or cracked hoses between EVAP canister purge valve and intake manifold.
-- Damaged EVAP canister purge valve.
-- Damaged PF sensor.

Hope help with this.

You might want to try "google images" just type in your vehicle and what your looking for. Here's an example (link) of what to look for.

http://www.fordmuscle.com/forums/attachments/all-ford-techboard/4132d1212515121-code-p1443-help-96tbird_evap.jpg

Po1443 is the canister vent valve.it means the sensor is out range, and needs replacing.
Po420and po430 are the catalytic converter codes, it means the cats. are inert and need replacing.

the ck eng light is displayed because ther is an issue with a computer controlled component such as eng sensors or egr system.it will have to be scanned to see what part is failing then repaird as needed.it will also have to have the codes that are stored cleared with a scan tool.before test drive to see if repairs are done proper.

if your obd2 scanner fits the connection you have obd2, obd1 connector is way differnt.

your code p1443
Control System
Canister Purge
Valve (Mechanical)
Malfunction
Monitors the fuel vapor
flow between the
engine intake manifold
and the EVAP
canister. The system
failure occurs when a
leak or blockage
between the intake
manifold, the EVAP
canister purge valve
and the EVAP canister
is detected by the
PCM.
l Pinched, blocked or
plugged fuel vapor
tubes/hoses (except
between fuel tank and
EVAP canister)
l Damaged EVAP
canister
l Disconnected, cracked
or cut fuel vapor
tubes/hoses (except
between fuel tank and
EVAP canister)
l Damaged EVAP
canister purge valve
Check for audible vacuum
noise in the engine
compartment or significant
fuel odor in the engine
compartment or near the
EVAP canister.

This link has all the codes you need.
http://rockledge.home.comcast.net/~rockledge/RangerPictureGallery/DTCs.pdf