Need a bit of help with a focus ST170
After finding that the engine was not running rite and it failing m.o.t on emissions i took the car to a garage.
He plugged the car in to a diagnostic machine and the codes read P0135 P0141 P1518.
So he said i need two new lambda sensors and a new IMRC box. Next day i went and paid over 400 pound for the bits i need fitted them had another re test done (because engine management light was still on) Only codes showing now is P0135 and P1518 (the other lambda sensor had a wire broke off) But the revs on tick over is a lot better its perfect on 8000rpm.
So now im stuck and have not got a clue what to try or do next im out of cash as im out of work. But this is whats happening with the car now.
When i come to a junction it cuts out.
The engine gets so hot you have to wait before looking under the bonnet else it burns your face off.
When you try slowly revving it up to 3000rpm it struggles to get there and comes back down again then back up and my foot does not move of the accelerator.(This only happens now and again)
Some times the revs are so low it cuts out.
The engine in general sounds very lumpy.
Theirs at least a second gap when you turn the ignition over to start the car.
you can smell the richness coming from the exhaust and theirs lots of smoke and water.
If anyone can please help as ive reached boiling point with it Or any one from around the tipton area can come out and have a quick look at it i would be over the moon.If it helps its an st170 conversion it has gone through genuine m.o.t before Thanks chris
He plugged the car in to a diagnostic machine and the codes read P0135 P0141 P1518.
So he said i need two new lambda sensors and a new IMRC box. Next day i went and paid over 400 pound for the bits i need fitted them had another re test done (because engine management light was still on) Only codes showing now is P0135 and P1518 (the other lambda sensor had a wire broke off) But the revs on tick over is a lot better its perfect on 8000rpm.
So now im stuck and have not got a clue what to try or do next im out of cash as im out of work. But this is whats happening with the car now.
When i come to a junction it cuts out.
The engine gets so hot you have to wait before looking under the bonnet else it burns your face off.
When you try slowly revving it up to 3000rpm it struggles to get there and comes back down again then back up and my foot does not move of the accelerator.(This only happens now and again)
Some times the revs are so low it cuts out.
The engine in general sounds very lumpy.
Theirs at least a second gap when you turn the ignition over to start the car.
you can smell the richness coming from the exhaust and theirs lots of smoke and water.
If anyone can please help as ive reached boiling point with it Or any one from around the tipton area can come out and have a quick look at it i would be over the moon.If it helps its an st170 conversion it has gone through genuine m.o.t before Thanks chris
Hi mate thanks for your reply. Im not sure what it is or were it is lol clueless when it comes to cars like this 1 lol were about is it and ill try it and get back to you about ? Cheers
could be down to a faulty maf...unplugging it has put the car into a mode which puts the fuel/air at factory values..... could be worth borrowing one to try..wouldn want you to buy one and it not the problem but its deff on that lines though.
As for smoke...u got a water leak somewhere..is it steam you are seeing?
As for smoke...u got a water leak somewhere..is it steam you are seeing?
could be down to a faulty maf...unplugging it has put the car into a mode which puts the fuel/air at factory values..... could be worth borrowing one to try..wouldn want you to buy one and it not the problem but its deff on that lines though.
As for smoke...u got a water leak somewhere..is it steam you are seeing?
As for smoke...u got a water leak somewhere..is it steam you are seeing?
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Deff not right and thats something u need to get sorted or it will overheat and cook your engine!!! Wait till it cools down and see if u can see which pipe i split or if its the radiator itself. If its a pipe see if any numbers on or send me a pic and I will price for you. As for the running , I would either get a maf to borrow (ideally) or buy one..I can supply if needed. Also check to see if you got any air leaks anywhwere as this could also be giving the maf false readings and making the cars fuelling go haywire. Not advisable to drive with it disconnected(even though its better) as the car is just in a 'safe' mode and fuelling will not be adjusted correctly when on the road.
Thanks
Graham
Thanks
Graham
Deff not right and thats something u need to get sorted or it will overheat and cook your engine!!! Wait till it cools down and see if u can see which pipe i split or if its the radiator itself. If its a pipe see if any numbers on or send me a pic and I will price for you. As for the running , I would either get a maf to borrow (ideally) or buy one..I can supply if needed. Also check to see if you got any air leaks anywhwere as this could also be giving the maf false readings and making the cars fuelling go haywire. Not advisable to drive with it disconnected(even though its better) as the car is just in a 'safe' mode and fuelling will not be adjusted correctly when on the road.
Thanks
Graham
Thanks
Graham
I have checked all the hoses dont seem to be any were it can leak from and radiator works fine it comes on when engine is hot.Ive uploaded as many pics as i can and 1 video. excuse the bad videoing lol.
Lambda sensor


Engine

Air filter

Car

Video
View My Video
Lambda sensor


Engine

Air filter

Car

Video
View My Video
Last edited by chris1987; Nov 22, 2010 at 02:05 PM.
The batteries on my car keep dying this is the 3rd new one i have paid for and its gone flat in 2 days. So i decided to test it using a multi reader and its reading 13 my dad thinks the alternator has also gone and it should be reading 14,14.5 any advice on this as well ?
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Did you use the ST170 alternator? The charging through the alternator is controlled by the ST170 ECU
There is something seriously wrong, the ST170 engine does run hot but what you describe is WAY beyond normal, there should be no smoke anywhere but from the end of the exhaust. Get that Lambda sensor right for starters. The conversion looks like a bit of a hash job from them pics
There is something seriously wrong, the ST170 engine does run hot but what you describe is WAY beyond normal, there should be no smoke anywhere but from the end of the exhaust. Get that Lambda sensor right for starters. The conversion looks like a bit of a hash job from them pics
Last edited by Sp3no; Nov 23, 2010 at 12:53 PM.
Yeah it the st170 alternator (can only go off what other owner said) Dont think it has gone tho because when i rev it the multi reader goes higher but im not sure. Engine was in already when i brought the car and i think they was clue less. Now thinking of taking it all out stripping the engine down and seeing what needs replacing and giving it all a good clean up and spray. Only problem i have is i have no engine crane.
Think i have found the problem why its getting so hot and white smoke coming from the exhaust. Been reading some topics and i think the head gasket has gone by reading some of the signs. all tho their is no sign of any mayonnaise in the oil cap or dip and the water and oil is still at the normal level.
The Car passed m.o.t come to drive it tho and it holds back badly after 3000rpm feels like it hits full power then. When i stop at junctions ect it cuts out any ideas on this Nealy running rite other than this. Cheers
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