#481: Re: Project sleeper Author: Seb, Location: Under your bedPosted: Fri May 07, 2010 3:34 pm ---- Not if he says it wasn't first like that.
#482: Re: Project sleeper Author: quiksilverRY, Location: West YorkshirePosted: Sat May 08, 2010 8:51 am ---- sometimes the ecu can loose its map and i know my car is no longer a pug but i had the same problems on my mondeo v6 and it turned out to be the EGR Valve and pipes, i dont know if your car has them but its worth a thought
#483: Re: Project sleeper Author: Edward, Location: In the garagePosted: Sat May 08, 2010 9:50 am ---- The EGR system isn't linked to anything anymore. In fact I might remove the EGR valve and blank it off using the plate from a GTi 180 if possible.
#484: Re: Project sleeper Author: Edward, Location: In the garagePosted: Mon Jun 14, 2010 1:19 pm ---- I've been talking to Omex today and they've come up with the goods. They've told me how to access the ECU in order to help diagnose the hot start problems. All I wanted to view is the data that the various sensors are sending out when the engine is running.
The first picture is what everything looks like when the engine is switched off from cold. You can see the % the throtle is open, the engine speed, coolant temp and stat sync'd tell you whether the crank sensor is picking up anything. There is also a run time which tells you how long the ECU has been on for. If the engine cuts out and the timer says a low number you know the power supply has been interupted. It also shows you the battery voltage too.
This is the data from when the engine is running. All I need to do now is be able to plug the ECU into a laptop when I get the cut out problem. Thankfully it's is rare because I never do hot starts as the car doesn't do stop - start driving.
#485: Re: Project sleeper Author: Jamie, Location: Ring y0Posted: Mon Jun 14, 2010 1:40 pm ---- Excellent news, are you going to get the engine re-mapped/calibrated ( ) when you have the air temp sensor installed? Any ideas where you'd take it?
#486: Re: Project sleeper Author: Edward, Location: In the garagePosted: Mon Jun 14, 2010 2:12 pm ---- No plans to change anything yet. I just need to see whether the emissions are good enough to get it through an MOT and then I might fit the air temp sensor.
As you'll know, I am going to think about rewiring the Omex. The connectors to the original ECU are very close to the underside of the headlamp housing. On top of these coinnectors is the wiring to the Omex which is very tightly squeezed in resulting in them rubbing on the sharp headlamp housing.
The Omex is much better inside the car away from heat and also if the car was ever in a bump there's the best part of £600 worth of ECU sat in a vulnerable location. I'd like to put a really nice loom on it and also fit one of the Omex coolant temp sensors too. It would take time to make a nice loom so I might wait until the winter when the car is off the road.
No plans to change anything yet. I just need to see whether the emissions are good enough to get it through an MOT and then I might fit the air temp sensor.
As you'll know, I am going to think about rewiring the Omex. The connectors to the original ECU are very close to the underside of the headlamp housing. On top of these coinnectors is the wiring to the Omex which is very tightly squeezed in resulting in them rubbing on the sharp headlamp housing.
The Omex is much better inside the car away from heat and also if the car was ever in a bump there's the best part of £600 worth of ECU sat in a vulnerable location. I'd like to put a really nice loom on it and also fit one of the Omex coolant temp sensors too. It would take time to make a nice loom so I might wait until the winter when the car is off the road.
sounds like you thought it outwell. id wait to the winter and not rush it
#488: Re: Project sleeper Author: Jamie, Location: Ring y0Posted: Mon Jun 14, 2010 2:27 pm ---- That sounds like a good idea to be honest!
#489: Re: Project sleeper Author: Schumi, Location: Istanbul / TurkeyPosted: Mon Jun 14, 2010 11:09 pm ---- Is your omex is connected to your stock O2 sensor ? Standalone ECU's didnt like narrow band o2. Its might be better to use wideband sensor.
#490: Re: Project sleeper Author: Edward, Location: In the garagePosted: Sat Jun 19, 2010 2:19 pm ---- Can I just stick a wideband in as a substitute for the standard lambda?
Anyway, more problems tonight. I'd not taken it for a proper run for a few weeks simply because it lets me down and it takes a few weeks for confidence to return to convince me to take it out. It gets started up every week and does a few miles to blow the dust off it.
At first it did the normal surging when driving on a constant throttle i.e. 3k rpm in 3rd gear. It does it in 2nd gear when driving in traffic and reminds me of a learner driver kangarooing away from traffic lights.
It did something different tonight though. When lifting off the throttle the car didn't slow down. It felt like I had cruise control as on occasions it held the car at 3k rpm. Even when I got home and blipped the throttle at standstill it held 3k rpm for a few seconds then dropped back to the normal idle speed.
There was also sometimes a slight hesitation when I floored the throttle too. After spending so much on the best kit why am I having so many problems????????
#491: Re: Project sleeper Author: Schumi, Location: Istanbul / TurkeyPosted: Sun Jun 20, 2010 7:13 am ----
Edward wrote:
Can I just stick a wideband in as a substitute for the standard lambda?
Wideband sensors requed its controllers. You must buy kit. Not only sensor.
Edward wrote:
After spending so much on the best kit why am I having so many problems????????
Ask your installer. Ecosse. Its maybe very good in mechanice works but i didnt think is good in electronic and mapping. Missing IAT sensor and paralel ECU installation is enough argument for me. And your endless problems. Go real Omex certified tuner.
#492: Re: Project sleeper Author: macj, Location: EssexPosted: Sun Jun 20, 2010 7:23 am ----
Edward wrote:
Can I just stick a wideband in as a substitute for the standard lambda?
Anyway, more problems tonight. I'd not taken it for a proper run for a few weeks simply because it lets me down and it takes a few weeks for confidence to return to convince me to take it out. It gets started up every week and does a few miles to blow the dust off it.
At first it did the normal surging when driving on a constant throttle i.e. 3k rpm in 3rd gear. It does it in 2nd gear when driving in traffic and reminds me of a learner driver kangarooing away from traffic lights.
It did something different tonight though. When lifting off the throttle the car didn't slow down. It felt like I had cruise control as on occasions it held the car at 3k rpm. Even when I got home and blipped the throttle at standstill it held 3k rpm for a few seconds then dropped back to the normal idle speed.
There was also sometimes a slight hesitation when I floored the throttle too. After spending so much on the best kit why am I having so many problems????????
Sounds like spiking to me.... is there an inbuilt noise filter in the ECU?
#493: Re: Project sleeper Author: Edward, Location: In the garagePosted: Sun Jun 20, 2010 7:44 am ---- On my screen dumps above when at idle it would suddenly pick up revs momentarily. When it does this the 'Spark Total' value increases. Any ideas what this means?
#494: Re: Project sleeper Author: macj, Location: EssexPosted: Sun Jun 20, 2010 7:53 am ---- I had an issue with noise affecting the fuelling. I had to increase the noise filter to nearly maximum to get rid of it... I traced it to the alternator in the end. Now I have the digidash I can see spikes and noise surges plainly on the tacho bar.... not enough now to affect the map. Worth a look in the manual to see if you can alter the filtering
#495: Re: Project sleeper Author: Edward, Location: In the garagePosted: Sun Jun 20, 2010 9:43 am ---- I'll have a look. I can even feel the surging on the overrun. So it's jerky when driving and less than smooth on the overrun too.
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) when you have the air temp sensor installed? Any ideas where you'd take it?
