How is this having so many faults? Lets fix it

[@ressybastien6002]

First of all I want to thank you with all your videos allowing me to repair or service my car, which is an European 1.6 Ecoboost Ford S-Max from 2013. Engine is ok no oil consumption, no coolant leak or consumption. Oil change every 10000 km (6000 miles) Mode 6 OBD scan values ok and no CEL. I have replaced all air sensors, coils, sparkplugs and high pressure pump , cam follower boost solenoid and BOV. On normal acceleration no problems to reach 6000 rpm and 150km per hour and stay at this speed with normal engine operation. I have an issue while accelerating hard or with weight in the car by having little like misfires above 3000 rpm. I'm turning in circle, if you have any ideas with your experience I'll be aware about. Thanks a lot for the time spent reading. Sorry for my bad language maybe.

[@filmboy18]

In regards to the fuel pressure dropping issue. I had a problem with a faulty BOV leaking boost/faulty BOV solenoid (forge recirc) and that caused all sorts of problems like fuel pressure drops which in turn made the injectors over compensate chucking black smoke out the back, power coming in and out etc. Fitted the stock diverter valve back on and car was normal again. Collins CP5.

[@jamiesweeting1770]

Interesting, I also had fuel pressure problems, boost control problems, throttle closing with CP5 Change BOV , fuel pumps actuator…. Turns out it was the software that was causing all my problems. Switched back to TRS and everything was fine again Funny things these fiestas

[@1krista1969]

This is why everyone who owns a car like this needs to understand how to read a datalog, so they can tell if theres an issue. Tuners don't usually care because its not their own car. The BCS is a common issue on these cars. They fail due to excess heat, which is a huge issue in a climate like ours in Arizona. Closing the throttle is a sure sign of ECU's last resort to control over boost. The only other scenarios which are normal for less throttle being commanded is for torque management, preignition and over temp throttle scaling to limit power. I keep a spare BCS on hand because of how common failures of these are. I have relocated mine away from the hot exhaust area and used high temp. Thick walled silicone hose. This makes response time of solenoid quicker. The stock BPV is also a problem under high boost, as it usually leaks. The new GFB BPV responds much cleaner and smoother.

[@leeevans4635]

Shocking from the Revo dealer...Thing is so many trust these dealers to sort their problems out 🙄🙄🙄 Nice fix though Steve 👍

[@KodeName.X]

It blows my mind how a company like REVO can just be like its fine nothing wrong with it. And i bet they charged to poor bloke. it sickens me companies do this to people. im glad you helped him steve and actually knew what you where doing

[@martcorn]

Garage door like a Bond villain my friend lol .

[@charlien8148]

Great vid as usual steve! If mapping goes well we going to see sps speed shop opening lol! Cant believe the dealer talks so much shit!

[@dbwarrior8600]

Been seeing alot lately ST's going MSD remaps (Motorsport developments) and on the Focus ST MK3 posting they loving the MSD remap transform it good for them on Facebook posts

[@turbocharged9906]

Fuel pressure drop could of been down to the injector DC being cranked up under overboost as it tried to richen the mixture and add fuel, this would sag the rail and not throw a code as its a protection method.

[@kevinparr4823]

Fantastic video not seen your vidds for a while got a mk8 😎 love et ... But anyway to permanently disable cylinder deactivation? I've been told sport mode will disable it but I'm not sure, any thoughts??

[@jackcoller2913]

Hey Steve! Love the videos what microphone do you use to record your audio?

[@Sparkplugsteve]

Thank you and its a go pro hero 8 as it comes out of the box. It's not perfect but does the job.

[@jackcoller2913]

@@Sparkplugsteve that’s awesome, I just brought a £400 Sony camera haven’t tested the audio yet but hopefully it does the job 🤞🤌.. while I’ve got you chatting I have a question 1. How much was your racing setup? (Gaming wheel etc) and what happened to the van project?

[@Sparkplugsteve]

@@jackcoller2913 I think the wheel was around £300 and the cockpit without a seat about 200. I still have the van for work and its going strong still thanks

[@phillloyd6356]

nice one Steve, well done bud

[@simonn2045]

Haven't watched this yet but I have remap gremlins to solve so hoping it'll help. Car is perfect stock though

[@mikeyg4297]

Can you see fuel pressure from fuel pump in tank

[@googlehub6629]

Have you cleaned the MAF sensor

[@Sparkplugsteve]

No i didn't.

[@karlruditis5615]

Good job 👍👍

[@alex98uk]

Good job

[@anthonytessier1324]

Salut 👋 cool 👍🇫🇷

[@clyvebranson8610]

ｐｒｏｍｏｓｍ ?

[@ianp369]

I really enjoy the way you explain what you have seen and your process for fault finding. Not taking anything away from the any of the larger performance dealers but some have a formula to hit specific power goals for various stages. When it comes to troubleshooting this requires a more intricate understanding of the specific vehicle and platform and this may not be obvious or easy to resolve without detailed knowledge as you have shown.

[@Sparkplugsteve]

Thanks very much.

[@feedingfrenzy123]

Nice going Steve 👍 Hopefully I don't have to do mine anytime soon, but it didn't look too bad a job changing that boost solenoid. Mine is on 91k (totally stock) and has never let me down. It's just needed general things fixing (water pump leaking, exhaust cam timing solenoid o ring failed). It hasn't gone ecoboom yet 🤣

[@MrShaunys1210]

Great vid mate, you talk to us, not at us 😂😂 any tips on diy smoke test on these?

[@dannbaker]

Why would they say it was working properly when in a full pull its less than half throttle?

[@Sparkplugsteve]

Baffles me also.

[@TheTechnoaddict]

Probably cause it's a tuner that is allowed by revo to upload the maps but doesn't really know what he is doing.😊

[@excossack]

@@Sparkplugsteve Maybe because they haven't got a clue other than very basic diagnostic?

[@ScrewwyLouie]

What symptoms would u have if i had one on my st that was faulty

[@Lieburner]

I have the same fu....g problem

[@johnowen9297]

hi steve john from tonypandy my son as a fiesta st it lose power when the car gets up to temp do you now what it could be thanks

[@Sparkplugsteve]

Hi John. It would need data logging i would say as its too hard to guess really.

[@johnowen9297]

@@Sparkplugsteve hi steve thanks for your reply

[@isoconfused8744]

always worth swapping them solenoid pipes to silicon, then pipes dont swell and contract internally as the pipes age

[@1krista1969]

Thicker wall silicone hose allows vacuum signal to respond faster. The thin rubber tubing Ford uses can collapse momentarily, delaying WG response. A symptom of BCS failure is poor boost recovery between gear changes. The OE BPV responds very quickly and can make WG lag behind.

[@fordyford]

If the boost issue is sorted, how was it running on the Revo 95 map? Did it "feel" like a remapped car? Keep in mind around 99% of cars getting remapped will always be set to a 98/99 octance map. What was boost and torque like in 1st and 2nd. Different to stock?

[@Sparkplugsteve]

It was making stage 1 airflow on the top rpm but down low was very flat and peak boost was standard.

[@MustangWill96]

Thanks Steve, drives awesome now👍

[@aaronjames1466]

Love it! doing things proper !!

[@jaynethell4330]

Nice to see you again Steve 😀

[@seanstephens494]

Need it taking off the 95 an putin on the 99ron map on

[@Sparkplugsteve]

Watch the next video when I post it up. 👍

[@jonnyspaniels9099]

What obd2 connector did you use to read all the live data logs?

[@Sparkplugsteve]

Elm327 I think it is

[@jonnyspaniels9099]

@@Sparkplugsteve thanks. I have almost the exact same issue on mine. Mine isn't remapped, only mod is a mountune air intake. Once I hit 4000rpm I lose all boost and orange spanner on the dash. I have forscan, what pids should I be looking at when capturing logs?

[@fasthracing]

How many miles has it done?

[@Sparkplugsteve]

66k I think.