Fuel flooding on Bank 1
Discussion
Just a few days ago, my engine (TVR Tuscan RR) began to throw smoke out of the right muffler. But not always.... was mostly gone after opening up the throttle for a short time...
But things got worse.... smoke got horrible and it smells just like the engine isn't buring most of the fuel on Cyliders 1-3.
Then I couldn't even start up the engine as it did not fire up anymore..
And when the engine stoppt turning when cranking, I realized, that some cylindes are probably blocked by tons of fule in their combustin chamber. So I unscrewed the sparkplugs and cranked the egnine... the cylinders from bank one spilled out A LOT of fuel....
I then measured the ignition cables and plugs.. all fine.
I've tried testing, if all sparkplugs are bringing a good spark.... not sure if that's the case... looks like sometimes there is a spark and sometimes not!? But might also be that I just couldn't see it correctly!?
Before I completely dismantel the engine... what other causes can it be?
Fuelpressure, Injectors, Coil etc?
But things got worse.... smoke got horrible and it smells just like the engine isn't buring most of the fuel on Cyliders 1-3.
Then I couldn't even start up the engine as it did not fire up anymore..
And when the engine stoppt turning when cranking, I realized, that some cylindes are probably blocked by tons of fule in their combustin chamber. So I unscrewed the sparkplugs and cranked the egnine... the cylinders from bank one spilled out A LOT of fuel....
I then measured the ignition cables and plugs.. all fine.
I've tried testing, if all sparkplugs are bringing a good spark.... not sure if that's the case... looks like sometimes there is a spark and sometimes not!? But might also be that I just couldn't see it correctly!?
Before I completely dismantel the engine... what other causes can it be?
Fuelpressure, Injectors, Coil etc?
Edited by votan on Thursday 17th July 09:36
Thanks. Already checked the diagnostics.. Lambda and all other values looked ok. Couldn't find any logged error codes... but maybe that's because I couldnd find any option to view error logs!? Or where do they get displayed?
I'll receive a spare coil pack and new leads today... see if that changes anything. Throttlebodies look fine so far...
I'll also recheck Diagnostics...
I'll receive a spare coil pack and new leads today... see if that changes anything. Throttlebodies look fine so far...
I'll also recheck Diagnostics...
I've spend the last days with checking everything... got the injectors out and cleaned/checked at a Bosh service... new Leads and coil pack installed. Pressure in fule rail doesn`t drop after a few minutes.
Maybe I have some more info that might point into some direction.... the problem started, when I had the car standning for a while and when I took it for a drive, I ran out ouf fuel a few meters away from the gas station (That's why I had the injectors checked and cleaned). After refuling the car ran lumpy for a short time but then all was fine again... a few days later, the car lost power and smoked from the right muffler like it is on fire. I stopped the car and gave a bit of throttle for a few times... suddenly full power was there again and smoke was gone. This started to happen more often then.... and now is persistent.
Cylinder 1 and 3 are flooded with fuel after a few seconds.... Sparks are fine on all cylinders and after drying the cylinders they actually do fire up a few times, till there is to much fuel in again.
Cylinder 2 seemt to be completely dry though... like it is getting no fuel at all.
Is there anyway to easily check if all injector leads are working and sending the right signal? Or could it even be the ECU?
Using MBEtool does not show any issues.... injector times are fine, lambda fine, temps fine, throttle fine etc...
Maybe I have some more info that might point into some direction.... the problem started, when I had the car standning for a while and when I took it for a drive, I ran out ouf fuel a few meters away from the gas station (That's why I had the injectors checked and cleaned). After refuling the car ran lumpy for a short time but then all was fine again... a few days later, the car lost power and smoked from the right muffler like it is on fire. I stopped the car and gave a bit of throttle for a few times... suddenly full power was there again and smoke was gone. This started to happen more often then.... and now is persistent.
Cylinder 1 and 3 are flooded with fuel after a few seconds.... Sparks are fine on all cylinders and after drying the cylinders they actually do fire up a few times, till there is to much fuel in again.
Cylinder 2 seemt to be completely dry though... like it is getting no fuel at all.
Is there anyway to easily check if all injector leads are working and sending the right signal? Or could it even be the ECU?
Using MBEtool does not show any issues.... injector times are fine, lambda fine, temps fine, throttle fine etc...
Gassing Station | Speed Six Engine | Top of Page | What's New | My Stuff