Hi guys,

On many of the pin out diagrams including the fabulous one on here, state an "Exhaust pressure transducer" what is this, where does it live and do we need it on a silver top Zetec using blacktop ECU etc?


Many thanks!!!!

I don’t know what your reading ? But it’s not anything of mine unless you mean somthing differant.

Egr ..exhaust gas recirculation.

Evap..Canister purge valve

.???.

Hi ya,

Pin 65 on the black top ECU says

65 white/green -- exhaust pressure transducer signal(large plug ) and I have seen this sensor shown on a few schematics and the plug I have has a wire in this cavity too.
All exhaust pressure sensor I can think of are normally on desiels etc

Many thanks.

It's on the egr pipework to detect blockage/bypassing on the later blacktop mondeo/cougar zetecs, i can't recall seeing one on a focus zetec.
It will trigger a fault code if not connected, i don't know if that code will trigger limp mode as well.
Are you using the blacktop inlet and exhaust system, or using the blacktop ecu with silvertop inlet/exhaust?


Dave

Hi ya,

So far I have blacktop ECU, inlet with injectors, idle valve, throttle position etc.
Nothing for the exhaust so far.

Cheers.

Have a look at these, there's an overview of the egr system and removal of the egr pipework with the pressure sensor pipework location.

https://workshop-manuals.com/ford/mondeo_1997_08.1996-09.2000/mechanical_repairs/3_powertrain/303_engine/303-08a_engine_emission_control_1.6l-1.8l-2.0 l/description_and_operation/engine_emission_control/

https://workshop-manuals.com/ford/mondeo_1997_08.1996-09.2000/mechanical_repairs/3_powertrain/303_engine/303-08a_engine_emission_control_1.6l-1.8l-2.0 l/description_and_operation/diagnosis_and_testing/removal_and_installation/exhaust_manifold_to_exhaust_gas_recirculation_(egr)_valve_tube/


Dave

Hi,

All understood. I wounder if my ECU requires this etc and if not fitted, if it goes to limp mode. other sensor to leve off until I power up nd check fault codes lol
At this rate, might have to by a scrapper car lol

Ok I did say I was going to give my self a refresher.

As pointed out above it’s a pre 97 thing and is part of the egr system.

It’s not present on the 98 99 system.

Lol lol perfect.

I have designed a whole vehicle schematic so double checking everything lol the Joy's of being an electrical engineer lol

It’s a looooooong time since I’ve played with silvertop and early Blacktop ecu’s.

If the vehicle had it there would be a metal pipe in the inlet. But as your mixing and matching.

With the silvertops that I did I binned the complete Egr system. It did show a code but did not give a limp home mode affect.
I am prety confident your ecu will not suport it any way.

More info here

http://www.gomog.com/allmorgan/ZetecIdleIssue.htm

Fantastic!

Your a top man as usual!!!!