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For a while I've notice like misfire between 1200 and 2000 revs
I think it happens after I changed air filter. Maybe coincidence.
I blanked the swirl flaps. I've changed the gaskets on manifold.
It is low on boost according the INPA desired and current values.
No errors on INPA.
Not sure where to look now.
I've ordered vacuum pipes to change all of them but not sure if this will help- hopefully will.
It's 2004 car eu4
Is the MAF will give this ?
I read this will affect the performance under 2k. This happened after I change air filter
Air filter sitting in correct against the maf?
Even if it isn't, shouldn't really give a misfire
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It does. I've checked today.
I'm reading now that the faulty MAF will gives hesitation and low power under 2k.
As this happened just next day I changed the airfilter and the old one was black.
Quick update.
I've unplugged the MAF (which brought the engine light) and car drives better.
Better acceleration until 2k and no misfire feeling. Idle revs steady no up or down.
I think this is the problem. I'll try cold engine later on.
When I started car this morning the revs were going up and down slight when cold.
So. Update.
I put new MAF and actually don't think made any changes.
I cleaned MAP and I think this made the difference. Less hesitation that's for sure.
Maybe is on the way out I'll check with INPA the values if bad I'll replace this as well.
Not sure if anyone is reading this, hopefully someone can help me at some stage.
So today I unplugged the vacuum pipe from EGR and blanked it.
Car definitely drives better until 2-3k with good pull and without hesitation.
I tried to push on 3rd gear above 3k and looks like lack of boost. Maybe there is a leak somewhere or egr is always open.
Not sure where to look. My MPG dropped a lot
If someone has an idea feel free to comment.
So far I've changed MAF for Bosh one and cleaned MAP ( which made slightly better - maybe is broken?) how to check in INPA ?
Anything else I need to check?
Unplugging EGR made big difference below 3k.
So. After unplugging the EGR car become worst. Lack of power. Also I've got those errors
http://i949.photobucket.com/albums/a...psa54xhitk.jpg
http://i949.photobucket.com/albums/a...psycknoj8c.jpg
Anyone could point me out what they mean ? Is those errors are related to MAP ?
I've ordered new MAP - Meyle.
I hope this will help
136 or 150 bhp?
19\G/48
Firu1 it's 150hp euro4.
Car drives fine now. Just misfire feeling more when is cold and warming up.
When cold sometimes revs up and down.
glow plug control unit ... more likely
is it smokey in the first start ?
19\G/48
Glow plugs unit and all glow plugs changed 3 weeks ago.
Car giving like puff of smoke on start actually.
So. I've changed the MAP and no difference.
When car parked over night morning start its running rough.
And smoke a bit like white, blue ish smoke. That's for few seconds. After that no smoke at all.
Car revs better when warmer.
Still feel of misfire up to 2k
Has good power.
Any thoughts ?
I think this must be injectors as this is definitely some issue with fuel delivery.
No codes when scanned.
Any recommendations for good and fairly cheap place to check the injectors and recondition them ? I think one of them or more is leaking the diesel and that's the problem on start when overnight parked.
i can get injectors fully recondition just need number of injector have two in stock for 150bhp i know some models have different plug in connection ... pm or text number will check ...
19\G/48
The numbers are located on the injector itself? Or I can use inpa to get the numbers ?
on injectors like this 0445110216
19\G/48
So. I brought the car to the diesel injectors guy and he took all of them out. All good. Small recalibration done only. Leak test perfect. Spray pattern perfect.
Also he replaced all vacuum pipes as few of them were in poor condition. He replaced diesel filter as well.
And ... Car drives as it should. No misfire. No hesitation. No rough revs.
All good now.
I think problem was with the vacuum pipes. Crazy how this could give you so much headache.
glad all sorted
19\G/48
I told U straight away when u came ,to replace all vacuum hoses !
But probably u didnt want to hear me if u did flaps and did t change them all !
Hi Valdas.
I did hear you mate.
I ordered pipes but arrived wrong size. So I did only flaps.
But then issues with rough starts appeared and I thought it was injector.
Lesson learned. I will definitely listen next time.
any way you know where to get injectors [emoji12][emoji12][emoji851][emoji106]
19\G/48
Glad ye got sorted, I'm havin similar ish issues and it's driving me crazy
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