Injectors 2 and 3 not pulsing
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Injectors 2 and 3 not pulsing
Can't figure it out. They both give the start up initial pulse, then they stop, not continuing the rhythm like the other two injectors. Tested everything possible. Hoping someone can tell me from experience that I put something in backwards or something.
Let me know ASAP!!
Thanks!
Let me know ASAP!!
Thanks!
Re: Injectors 2 and 3 not pulsing
Swap injectors and see if the problem follows the injectors. If it does, replace the injectors. If the problem is still #2 and #3 then check the harness, connectors and ECU.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
Re: Injectors 2 and 3 not pulsing
The injectors worked fine prior to the rebuild. I've gone back and redone all wiring ive done for the 5 speed swap with no avail. Something is telling the ecu to drop fuel to those two. When you disconnect the battery and drain the charge, then reconnect and start, it almost fires off, then the ecu gets a signal from somewhere telling it to cut fuel to those cylinders, and it does out. No codes in it either.
Re: Injectors 2 and 3 not pulsing
I find it unlikely that the ECU is dropping only 2 cyls. I can't think of a single scenario where that would happen.
It is possible that the output transistors are overheating after the first few fires.
Have you tryed another ECU?
It is possible that the output transistors are overheating after the first few fires.
Have you tryed another ECU?
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
Re: Injectors 2 and 3 not pulsing
No I haven't.
What I've done as for wiring mods are only bypassing the neutral lock, wiring the reverse lights, and snipping the mt/at identifier. I've reconnected the snipped wire and got nothing. I've reinstalled the TCU and got nothing. Tomorrow morning I will be looking at the neutral lock by pass to see if wiring it that way (where the car can start without the clutch engaged) is causing an issue. Other than that I am stumped. Keep in mind everything worked before I started modding.
What I've done as for wiring mods are only bypassing the neutral lock, wiring the reverse lights, and snipping the mt/at identifier. I've reconnected the snipped wire and got nothing. I've reinstalled the TCU and got nothing. Tomorrow morning I will be looking at the neutral lock by pass to see if wiring it that way (where the car can start without the clutch engaged) is causing an issue. Other than that I am stumped. Keep in mind everything worked before I started modding.
Re: Injectors 2 and 3 not pulsing
$100 to the person who makes this thing start.
Re: Injectors 2 and 3 not pulsing
Just tried a different ecu. Wasn't it
Re: Injectors 2 and 3 not pulsing
Check to make sure that you have 12v at the injectors all the time and it's not cutting out. If you have voltage, check the wiring from the injectors to the ECU to make sure it's good.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Injectors 2 and 3 not pulsing
12v is good. Wiring is all good.
Re: Injectors 2 and 3 not pulsing
Have you put a multimeter on the wiring and verified it's 0 ohms all the way back to the injector ECU pins?
If you've done this, and swapped out ECU's....I'm kind of at a loss without some additional information/testing.
If you've done this, and swapped out ECU's....I'm kind of at a loss without some additional information/testing.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Injectors 2 and 3 not pulsing
0 ohms? I got a steady 11 on all of them.
Re: Injectors 2 and 3 not pulsing
11 volts?
It sounds like you are checking voltage at the injectors. That's good. However you need to make sure the wiring from the injectors to the ECU is good. To check continuity of the wire and make sure everything's good you need to check the resistance. 0 ohms indicates the wire is good and there's no issues. You will need to put one end of the meter in the injector wire that doesn't have 12v on it, and then put the other end in the ECU pin for that particular injector to test for continuity.
It sounds like you are checking voltage at the injectors. That's good. However you need to make sure the wiring from the injectors to the ECU is good. To check continuity of the wire and make sure everything's good you need to check the resistance. 0 ohms indicates the wire is good and there's no issues. You will need to put one end of the meter in the injector wire that doesn't have 12v on it, and then put the other end in the ECU pin for that particular injector to test for continuity.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Injectors 2 and 3 not pulsing
11 ohms on the injectors themselves. I tested continuity from the injector wire to the bulkhead harness behind the battery, that checked out. Will check to the ecu as well. The thing that weirds me out is when hooking up my bulb to the injector harness, the two injectors not pulsing correctly on their stroke both have the initial "all 4 injectors pulse to try and start the engine", then they stop, while the other two are still pulsing when they're suppose to.
Re: Injectors 2 and 3 not pulsing
Bump this 1 week till I leave.
Re: Injectors 2 and 3 not pulsing
Did you check the wiring to the ECU?
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Injectors 2 and 3 not pulsing
Yes, got nothing.
Re: Injectors 2 and 3 not pulsing
What do you mean you didn't get anything, please clarify? Did you not get any continuity between the connector in the engine bay and the ECU pins?
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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- Fifth Gear
- Posts: 2266
- Joined: Wed Nov 12, 2003 12:26 am
- Location: USA: Portland, OR (Tigard, ~200ft elevation)
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Re: Injectors 2 and 3 not pulsing
I think we have the same problem - just after a timing belt replacement. My thread (just started):
http://bbs.legacycentral.org/viewtopic. ... ng#p408785
Could it be the cam or crank sensor causing this for us? Anyone know which controls injector firing...?
My car's stuck at the mechanic's shop until this gets figured out... yikes
http://bbs.legacycentral.org/viewtopic. ... ng#p408785
Could it be the cam or crank sensor causing this for us? Anyone know which controls injector firing...?
My car's stuck at the mechanic's shop until this gets figured out... yikes
-Chris
91SS 4EAT stock
91SS 5MT awaiting engine rebuild and VF36...
92SS 4EAT - RIP
94SS 5MT4.11+rLSD 289k km: RobTune550,TD05-16g @ 18psi,FMIC,3"TBE,Forester lift
91SS 4EAT stock
91SS 5MT awaiting engine rebuild and VF36...
92SS 4EAT - RIP
94SS 5MT4.11+rLSD 289k km: RobTune550,TD05-16g @ 18psi,FMIC,3"TBE,Forester lift
-
- Fifth Gear
- Posts: 2266
- Joined: Wed Nov 12, 2003 12:26 am
- Location: USA: Portland, OR (Tigard, ~200ft elevation)
- Contact:
Re: Injectors 2 and 3 not pulsing
Just because I like to see things resolved, especially when I'm looking through posts and find something similar to my problem but there is no solution in sight.....
See my original post here - http://bbs.legacycentral.org/viewtopic.php?f=19&t=52068
...it was my ECU.
See my original post here - http://bbs.legacycentral.org/viewtopic.php?f=19&t=52068
...it was my ECU.
-Chris
91SS 4EAT stock
91SS 5MT awaiting engine rebuild and VF36...
92SS 4EAT - RIP
94SS 5MT4.11+rLSD 289k km: RobTune550,TD05-16g @ 18psi,FMIC,3"TBE,Forester lift
91SS 4EAT stock
91SS 5MT awaiting engine rebuild and VF36...
92SS 4EAT - RIP
94SS 5MT4.11+rLSD 289k km: RobTune550,TD05-16g @ 18psi,FMIC,3"TBE,Forester lift