Injector doesnt close?
Moderators: jsmcortina, muythaibxr
Injector doesnt close?
Hello everyone,
maybe Im posting on the wrong place but I have an issue with my corolla 4AGE engine.
I have some issues with injecting... cylinders #3 & #4 are not firing as they should and spark plugs are black.
I've changed distributor arm and distributor cap. Checked injectors. All good
Compression on all 4 cylinders are great (~190 PSI)
Compression test on all 4 cylinders is the same
Spark plugs on cylinders #3 & #4 are like this on #1 & #2 are normal.
Tried:
- replaced injectors
- check old injectors with Tunerstudio INJ test tool, all injectors are "clicking"
Is it possible that DIYPNP has some problems?
Maybe I've forgot something to write.
maybe Im posting on the wrong place but I have an issue with my corolla 4AGE engine.
I have some issues with injecting... cylinders #3 & #4 are not firing as they should and spark plugs are black.
I've changed distributor arm and distributor cap. Checked injectors. All good
Compression on all 4 cylinders are great (~190 PSI)
Compression test on all 4 cylinders is the same
Spark plugs on cylinders #3 & #4 are like this on #1 & #2 are normal.
Tried:
- replaced injectors
- check old injectors with Tunerstudio INJ test tool, all injectors are "clicking"
Is it possible that DIYPNP has some problems?
Maybe I've forgot something to write.
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Re: Injector doesnt close?
If you swap the injector wiring around, does the problem follow the injectors or the wires?
James
James
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Re: Injector doesnt close?
@jsmcortina
when I switch injector wiring from #2 to #3, #3 cylinder works #2 doesnt
when I switch injector wiring from #2 to #3, #3 cylinder works #2 doesnt
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Re: Injector doesnt close?
I don't know a lot about the DIYPNP. Best to discuss with your supplier.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Injector doesnt close?
I have a DIYPNP, some of it is the same as yours.wewerica wrote:...
Tried:
- replaced injectors
- check old injectors with Tunerstudio INJ test tool, all injectors are "clicking"
Is it possible that DIYPNP has some problems?
Maybe I've forgot something to write.
It's not injectors, it's ignition. Plugs are not firing.
Double check the docs for yours, see section DIYPNP Jumper Configuration
https://www.diyautotune.com/support/tec ... a-corolla/
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
Re: Injector doesnt close?
Car was running for one year without any issues and one day it just died
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Re: Injector doesnt close?
You didn't think this was important enough to mention in the 1st post?wewerica wrote:Car was running for one year without any issues and one day it just died ...
Bad connection.wewerica wrote:@jsmcortina
when I switch injector wiring from #2 to #3, #3 cylinder works #2 doesnt
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
Re: Injector doesnt close?
I forgot it sorryBlown88GT wrote:You didn't think this was important enough to mention in the 1st post?wewerica wrote:Car was running for one year without any issues and one day it just died ...
I was driving it one day uphill and when I got to the traffic light car was running like a crap
I've changed distributor arm, cap and spark plugs but no luck. Tried with cables too.Blown88GT wrote:Bad connection.wewerica wrote:@jsmcortina
when I switch injector wiring from #2 to #3, #3 cylinder works #2 doesnt
Checked the injectors all working as they should.
Checked connection between injector connector and ecu connector, its fine.
Re: Injector doesnt close?
Get inline spark tester.
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
Re: Injector doesnt close?
Why do I need this?Blown88GT wrote:Get inline spark tester.
Spark is ok on cylinder #3 when I switch connector from injector #2 to #3. Cylinder #3 works like this.
Re: Injector doesnt close?
You stated:
How did you determine that spark is okay without using a spark tester?
If the injectors are functioning, then it must be the spark plug that's not.wewerica wrote:...check old injectors with Tunerstudio INJ test tool, all injectors are "clicking"
...Spark is ok on cylinder #3 when I switch connector from injector #2 to #3...
How did you determine that spark is okay without using a spark tester?
1988 Mustang GT, 59k miles, Orig Owner
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
ProCharger 600B I/C, 12psi, FRP Hdrs, Flwmstr F2, 3G Alt, Contour Fan & DCC, 3.55's, Prog Sprg, Subfms, UCA, LCA, FCA, Tokico 5's, Bridgestone RE-71R 245/40R17, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, Spartan 2, C&L76mm blo-thru MAF, 47lb FRP-LU47
Re: Injector doesnt close?
switched places for injector connector #2 and #3 and got injector/cylinder #3 to workBlown88GT wrote:You stated:If the injectors are functioning, then it must be the spark plug that's not.wewerica wrote:...check old injectors with Tunerstudio INJ test tool, all injectors are "clicking"
...Spark is ok on cylinder #3 when I switch connector from injector #2 to #3...
How did you determine that spark is okay without using a spark tester?
Re: Injector doesnt close?
are you set for sequential injection? or batch injection? also
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Injector doesnt close?
@grom batch injection
will post tomorrow sorry
will post tomorrow sorry
Re: Injector doesnt close?
just out of curiosity are the 2 problem injectors on the same injector channel?
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Injector doesnt close?
Problem are injectors #3 & #4, they are on one channel.
Just for test: I've switched places connectors on inj #2 & #3. And got cylinder#3 to work
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Just for test: I've switched places connectors on inj #2 & #3. And got cylinder#3 to work
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Re: Injector doesnt close?
Todays datalog and msq
Not sure how ignition timing is set, I've removed distributer so I will have to check when I get car to work.
Not sure how ignition timing is set, I've removed distributer so I will have to check when I get car to work.
Re: Injector doesnt close?
it sounds like it may be a hardware issue on the injector driver
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Injector doesnt close?
grom_e30 wrote:it sounds like it may be a hardware issue on the injector driver
Is this all the hardware for injector driver?
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Re: Injector doesnt close?
pretty much. but do check from the main board that the microsquirt module plugs in to
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????