Fiat Coupe Forum
- Founded by Kayjey & James Northam
- Funded by the Club for the benefit of all owners
Fiat Coupe Club UK
join the club
Fiat Coupe Forum
 
» Announced
    Posting images


» Related sites
    Main club site
    fiatcoupe.net


» External data
    owners listed
 
Who's Online Now
4 registered members (Ballypete, Rich_manipulate, MareaHGT, 386ka), 87 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics110,411
Posts1,310,516
Members2,170
Most Online731
Jan 14th, 2020
Top Posters(All Time)
barnacle 32,305
stan 32,098
Theresa 22,924
bockers 21,019
PeteP 19,350
JimO 17,908
Nigel 17,201
Jim_Clennell 16,346
nismo 15,137
RSS Feeds
Club Events
Club Information
Track Events
Rolling Road/RWYB
Social Events
Non-UK Events
Coupé Related Chat
Coupé Spotting
Coupé News/Press
Buying/Selling Advice
Insuring a Coupé
Basic FAQ's
How to Guides
Forum Issues
Technical Problems
General Maintenance
Styling
Tuning
Handling
ICE and Alarm
Coupés for Sale
Coupés Wanted
Parts for Sale
Parts Wanted
Group Buys
Business Forum
Other Vehicles for Sale/Wanted
Other Items for Sale/Wanted
Haggling/Offers
Ebay links
Other Cars
Other Websites
General Chat
Previous Thread
Next Thread
Print Thread
Page 3 of 3 1 2 3
Re: Bosch Injectors [Re: dicksog] #1637467
10/12/2019 17:34
10/12/2019 17:34
Joined: Dec 2005
Posts: 3,726
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
Forum is my job

Joined: Dec 2005
Posts: 3,726
Pothole City
Originally Posted by dicksog
Sure you’ve checked this, but my 20vt used to just scrape emissions for years turns out there was a hairline crack in the exhaust manifold, if driven “vigorously” before the mot it would close up just enough to scrape through. After the crack became big enough to be heard and I replaced it the car has sailed through mot emissions tests. Just a thought.


I can't hear, see or smell any leak from around the manifold when it's cold but without removing the heatshield it's impossible to be 100% sure if it's OK.

An interesting possibility though, thanks. If it fails again at next MOT attempt then it would probably be worth checking the manifold properly before deciding to break/scrap it though.

I didn't get the full emissions fail report last time but was told it was just the CO that was the problem, whereas I think if there's an exhaust leak it causes the lambda reading to go high (lean)? Apparently a bad cat will cause a fail just on CO at up to 2x the max allowed, which is what I'm getting.

Re: Bosch Injectors [Re: clanger] #1637651
18/12/2019 19:44
18/12/2019 19:44
Joined: Dec 2005
Posts: 3,726
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
Forum is my job

Joined: Dec 2005
Posts: 3,726
Pothole City
Finally some good news. smile

Back for MOT today with the new downpipe + cheap ebay cat and got a perfect pass on emissions and that was with the car sitting for 5 hours at the garage before the test so no great heat in the cat at all.

So, to summarise my experience with these new injectors :

1. Barely passed emissions test last year, 800 miles ago
2. Fitted these new injectors and failed emissions at 20x the CO limit (serious over-fuelling confirmed by ACR4 diagnostic)
3. Re-fitted standard injectors and failed emissions at 2x the CO limit
3. Fitted cheap (£50) new ebay cat and got perfect emissions pass, well below all limits

These Finjector injectors are confirmed by the manufacturer as flowing 45% more fuel than the standard Bosch injectors so even though they've apparently worked for some in this thread OK I'd be very careful as you might need a custom ECU re-map to use them safely. If you are intending a re-map along with bigger turbo etc. (aiming for 350~400BHP or so) I have a set of these injectors for sale at 1/2 new price, having done 4 miles.

Re: Bosch Injectors [Re: clanger] #1637653
18/12/2019 20:23
18/12/2019 20:23
Joined: Mar 2007
Posts: 11,087
Auld Reekie
Edinburgh Offline
Club Board member
Edinburgh  Offline
Club Board member
I AM a Coop

Joined: Mar 2007
Posts: 11,087
Auld Reekie
Great result at last Graham - your coop still has a few of its nine lives left smile


Thanks again, Photobucket.
BumbleBee under restoration, in paintshop!...
Re: Bosch Injectors [Re: clanger] #1637655
18/12/2019 20:45
18/12/2019 20:45
Joined: Dec 2005
Posts: 3,726
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
Forum is my job

Joined: Dec 2005
Posts: 3,726
Pothole City
^^ Haha, yeah, it's been on its "final warning" at least 4-5 times now. laugh

Re: Bosch Injectors [Re: clanger] #1637656
18/12/2019 20:46
18/12/2019 20:46
Joined: Dec 2005
Posts: 7,333
Lightwater, Surrey, UK
DaveG Online content
Club Member 311
DaveG  Online Content
Club Member 311
Forum is my life

Joined: Dec 2005
Posts: 7,333
Lightwater, Surrey, UK
Yay, a great result Graham, well done for persevering and your Coupe lives to fight another day. If I hadn't already got a set of injectors to go with my larger turbo I may well have bought yours, good luck with the sale.


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Bosch Injectors [Re: clanger] #1638029
08/01/2020 14:49
08/01/2020 14:49
Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
Kelv27 Offline
Forum is my job
Kelv27  Offline
Forum is my job

Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
Having driven the car abit more, thought I should update here on the latest developments.

Contrary to what I experienced and mentioned earlier, I can now confirm that my outcome mirrors that of GrahamL’s. Despite initially having no indication of the EV14’s over-fueling, the short term and long term fuel trim readings have now developed to be negatively off the scale...indicating that the ECU is most likely trying to compensate for the increased fuel delivery from the injectors.

I have since reverted back to the old, stock injectors and fuel trims have normalized. However, the car just doesn’t feel as good to drive despite the data showing that it should technically be more efficient. Perhaps the atomization just isn’t up to scratch compared to the newer EV14’s, but this prompted me to look further into the health of the old EV1’s.

All 3 sets that I have are showing excessive impedance. From new, they should be at 16 ohms but the ones I have are all over 20 ohms (some even as much as 30 to 40 ohms!). This would definitely be one, if not many, of the contributing factors to why it just doesn’t feel right. Given the age of the stock EV1’s, it’s pretty likely that most coupes out there would be running with similarly excessive impedance.

Looks like it’s back to square one!



Re: Bosch Injectors [Re: clanger] #1638034
08/01/2020 17:21
08/01/2020 17:21
Joined: Mar 2019
Posts: 53
North Macedonia
386ka Online content
Reaping the fruits
386ka  Online Content
Reaping the fruits

Joined: Mar 2019
Posts: 53
North Macedonia
A quick search brought up this seller on aliexpress (https://www.aliexpress.com/item/32961492447.html). Now, I would be reluctant to use injectors of unknown origin myself without testing them, even though they say they're tested. But, if they are not obtainable new now, perhaps it's a viable option...

PS, someone bought them from the same seller, but at a bit higher price (https://www.aliexpress.com/item/32845639786.html)

Re: Bosch Injectors [Re: clanger] #1638035
08/01/2020 17:29
08/01/2020 17:29
Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
Kelv27 Offline
Forum is my job
Kelv27  Offline
Forum is my job

Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
I’ve seen those..but unfortunately they are not new either. frown



Re: Bosch Injectors [Re: Kelv27] #1638056
09/01/2020 20:25
09/01/2020 20:25
Joined: Dec 2005
Posts: 3,726
Pothole City
GrahamL Offline
Forum is my job
GrahamL  Offline
Forum is my job

Joined: Dec 2005
Posts: 3,726
Pothole City
Originally Posted by Kelv27
the short term and long term fuel trim readings have now developed to be negatively off the scale...


Interesting! Where are you reading that from, is that something I've missed on the ACR4?

I hope your cat is OK.
(Otherwise we might need the services of these guys : https://www.imdb.com/title/tt11318602/ ) smile

Re: Bosch Injectors [Re: GrahamL] #1638062
10/01/2020 01:10
10/01/2020 01:10
Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
Kelv27 Offline
Forum is my job
Kelv27  Offline
Forum is my job

Joined: Jun 2007
Posts: 4,434
Malaysia..Glasgow at heart
Originally Posted by GrahamL
Interesting! Where are you reading that from, is that something I've missed on the ACR4?


They were read via Multiecuscan which is much more detailed..being able to chart out graphs makes reading much easier too. My ACR now lives in the boot of the car and used for roadside reading only laugh

Originally Posted by GrahamL
I hope your cat is OK.
(Otherwise we might need the services of these guys : https://www.imdb.com/title/tt11318602/ ) smile

Haha ironically I just completed watching this last night!



Page 3 of 3 1 2 3

Powered by UBB.threads™ PHP Forum Software 7.7.1
(Release build 20190129)
PHP: 7.3.12 Page Time: 0.033s Queries: 15 (0.019s) Memory: 0.8000 MB (Peak: 0.9135 MB) Data Comp: Off Server Time: 2020-01-18 13:08:37 UTC