Hi guys, my friend recently purchased a fiat palio with 60k odo. And engine was in a bad condition.
We replaced the whole engine from a total loss swift ddis engine.
After replacing engine started and up running in few cranks.
No ECU errors.
Took home and drove for few hundred kms.
We removed dash and gave for a paint work .
We drove car for few kms without dash.
After few days we started facing a issue
Car does not start!
We checked all sensors and
Replaced crank and cam sensor from a working manza mjt.
Still does not start.
A mech came and started car by spraying little amount of petrol via intake.
And car starts and runs well.
Sometimes it idles with a huge knocks. And dies sometime
Now we are able to start car only with spraying petrol via intake.
But sometimes after some long runs car starts well in a short crank itself.
We drive the car to find something wrong mechanically.
Car runs well as like a new car.
Pickup is awesome and no smoke in exhaust.
Car runs well at high speeds too.
But if we park for sometime and crankit
NO ECU ERRORS RECORDED .
Old engine was a BS3 and new is a BS4
But no change in engine and injector compartment.
Only some emission control EGR tricks and injection timing and tunes
The ECU is a old palio mjt ecu.
We checked immobilizer, but it seems working well. And nothing wrong in it.
We also opened and bleeded the fuel lines starting from auxiliary pump to filter /to fuel pump/ to common rail / to rail injectors lines/ also feed back lines.(many times)
We checked resistance and voltages from all sensor's and also continuity from sensor wiring to ecu
Every thing seems good.
Glow plugs are extremely new.
Glow plug relay works fine .
I have rounded up to go head with these.
1 ) compression chk
2) valve /cam clearance chk
3 ) fuel pump chk
4) rail pressure sensor realtime value chk
5) rail solenoid chk
6) connecting ECU to fiat workshop repair machine and Chk engine tuning and timing and all values of sensor's resemble correct default values according to rpms in no load
7 ) update bs4 firmware if possible.
Please guide me
The thread of palio Project Fiat Palio MJD 1.3: Giving Another Life