View previous topic :: View next topic |
Author |
Message |
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Wed Apr 29, 2020 20:46 Post subject: Is it time to buy new injectors? |
|
|
Hi everyone,
So I've recently been playing around with this little cable I got to connect to the computer and taking some random readings.
Yesterday I took a reading of the injectors when the engine was hot and today I did the same when the engine was cold.
I gotta be honest, I don't understand much of it but from what I'm reading on the internet, my injector feedback values and injector volumes are out of whack.
Posting the photos on Imgur (apologies for the quality of photos, took them using my phone camera, rather than a screenshot). Hoping to get some insights as to what I'm looking at before taking her in to see a diesel specialist.
Here's the link: https://imgur.com/a/u7wdezK
If info is missing, let me know what would help in diagnosing it further and I'll upload that as well. |
|
Back to top |
|
|
Google Sponsor
|
Posted: Wed Apr 29, 2020 20:46 Post subject: Google Ads keep this community free to join! |
|
|
|
|
Back to top |
|
|
TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
|
Posted: Thu Apr 30, 2020 16:26 Post subject: Is it time to buy injectors |
|
|
The main numbers to look at when the coolant temp is 83 Centigrade and the engine at idle with all electrics switched off and in park if its a auto trans or neutral if a manual box the main numbers should be,
calculate load 10 percent any thing up to 16 is OK from 17 its time to start thinking about new injectors ,
injection volume ,new injectors 5 to 6 up to 8 is still very good must be under 12 to be good ,
main injection period 500 to 650 up to 700 above 750 not good ,
feedback value plus or minus 3 above that not good. |
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Fri May 01, 2020 9:21 Post subject: |
|
|
Thanks Tony.
From the figures you shared, it seems my injectors, at least 2 of them, are on the way out. Calculate load was at 33% when hot. I'll take another reading but it does look like a huge expense is on the way.
|
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Sat May 02, 2020 21:03 Post subject: |
|
|
Took the reading once again:
Coolant temp: 86 C
Calculate load: 23%
Injection vol: 11
Main Injection period: 780
Injection Feedback Val # 1: 1.0
Injection Feedback Val # 2: -4.7
Injection Feedback Val # 3: 2.9
Injection Feedback Val # 4: 0.4
Taking the car in on Monday to be diagnosed by a specialist. Pretty sure I'll be needing new injectors.
Thanks for the reference values, Tony. |
|
Back to top |
|
|
TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
|
Posted: Sun May 03, 2020 9:11 Post subject: |
|
|
Injectors usually last between 120 to 150k miles and /or up to 15 years before they start showing they are worn out , so if you have done more miles than that your injectors have lasted well , if you are not doing the job your self make sure its done by a reputable injector place as cleanliness and preparation are the upmost importance for long lasting injectors and for the price difference get new denso replacements rather than reconditioned , |
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Wed May 06, 2020 13:25 Post subject: |
|
|
Took the car to the specialist. Within 2 minutes he says the injectors are long past due for a replacement.
He said he wasn't sure if he could source new Denso injectors or reconditioned ones. He'll let me know next week.
Car has 196k miles on it, 90% of that is from regular trips from England to France, so all highway miles, but of course it still has wear and tear on the injectors. |
|
Back to top |
|
|
TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
|
Posted: Wed May 06, 2020 21:22 Post subject: |
|
|
I tried reply to your comment naming a company that your specialist can obtain genuine toyota (Denso) injectors from at trade prices but this site refused to allow it . |
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Wed May 06, 2020 21:29 Post subject: |
|
|
Are you able to PM me the name? Or won't allow there either? |
|
Back to top |
|
|
TONYCY11 ****
Joined: 05 Jun 2012 Posts: 409 Location: CYPRUS
|
Posted: Thu May 07, 2020 8:32 Post subject: |
|
|
Hi I dont know what PM is as I am not that computer literate as I am 60, but I am on whatsapp and its free to call or text my number is 00357 97859007 , |
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Thu May 07, 2020 9:21 Post subject: |
|
|
PM is personal message. I will send you one so you get a notification. I'll contact you over WhatsApp as well. |
|
Back to top |
|
|
2toyotas Newbie
Joined: 07 May 2020 Posts: 3 Location: Raunds, Northamptonshire
|
Posted: Thu May 07, 2020 17:24 Post subject: Re: Is it time to buy new injectors? |
|
|
Hi did you get any signs from the car, as I think mine are on the way out, and due to covid19, can't really get to a specialist, and don't have time, me and the wife are "key workers", mines recently on cold start has a ticking noise and it's vibrating alittle more then normal |
|
Back to top |
|
|
nicolascarlo *
Joined: 05 Apr 2019 Posts: 29 Location: Edinburgh
|
Posted: Fri May 08, 2020 13:20 Post subject: |
|
|
Hi 2toyotas:
Some of the telltale signs were:
Somewhat terrible mileage.
The knocking was louder than before.
Black plume of smoke on higher revs.
Injector misfiring.
After that I bought one of those diagnostic tools and the readings were terrible so decided to take it to a specialist.
Some garages and specialists are still open as they are deemed essential. I'd give one a phone call just in case and see if you can arrange something. Sometimes they can just tell by listening to the way the engine sounds if there's something messed up with the injectors so if you don't want to take the car in, ask them if you can send them a video. |
|
Back to top |
|
|
|