Going on a roadtrip across Eastern Europe with a friend, ironically the one who was more prepared & already lives in central europe isn't able to get the car out of the garage haha, my glorious pickup had no issues with the 1k km roadtrip (ignoring a leaky heater matrix)

 

Anyhow, TL;DR car runs like absolute ass, new timing chain, spark plugs, help plz

 

Here's my friends full explanation of the issue, I've summarized

 

• Timing chain replaced
  • Test driven and drives normal
• Car sat, used recently and ran poorly, summised to be bad fuel, no change.
• Replaced sparkplugs, one cylinder has fouled the sparkplug substantially.
• Car runs on either LPG or Petrol, both have same issue
• Exhaust removed, same issue
• Intake clear

 

The ECU is capable of reading back the cam position sensor in both degrees and a percentage - any idea what the desired values are? In an ideal world it wouldn't be timing related as it was tested after replacing the chain, but life.

 

 

 

Here's my friends write up

 

Quote

 

Felicia 1.3 MPI 50kw LPG, weak performance across the entire rev range.

 

The car has very weak performance, it can't get into revs under load - i.e. in 4/5th gear it can reach max 4-4.5k revs, it doesn't go more than about 120km/h. Cold starts are very poor, it catches about the fourth time with added gas, the first 10s it has no idle, so you need to add gas so it doesn't stall, and it has a very disordered sound, as if it was running on three cylinders. About 10s after starting it calms down and goes to idle, but when driving it lacks power.

 

In such a state, the car passed the MOT excellently yesterday, emissions deep below the limits, almost like a new engine.

Today we changed the spark plugs, the car now starts beautifully even on a cold engine, but lost even more power, it doesn't go more than 80km/h. We also tested with the air filter completely disconnected, same result.

These problems persist when driving on both gasoline and LPG, so theoretically we can rule out everything from the tank to the injectors.

The exhaust is also down along with the catalytic converter, no change.

 

Could someone guide us in the right direction?

 

 

The @Thefeliciahacker has LPG Felicia, he will know about this.

Possible vacuum leak in the air intake system? (Although I think this would have shown up as a poor emissions on the test)

 

Also is that rust on 3 of the spark plugs, or just some kind of varnish build up?

You have a wiring issue. 

Caused by lpg installation.

Ensure injector wiring continuity. 

Only cylinder 3 is getting fuel the rest are getting NOTHING. 

You are running on 1 cylinder. 

There will be errors stored in the ecu. 

Plugs are sparking but there is no fuel, or there is some very sporadically. 

100% wiring related. 

And that's the reason the lpg don't work either, it doesn't get valid injector pulses thereby can't calculate injector timing 

 

Edited 20 July, 20232 yr by Thefeliciahacker

Sorry never updated this

 

Pushrod came loose from rocker

On 21/08/2023 at 20:15, adamyt said:

Pushrod came loose from rocker

uhmmm wtf