How to test secondary injectors?
06-13-06, 07:37 PM
#1
Drive.
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How to test secondary injectors?
Is there anyway to check to see if your secondary injectors are coming on when they are suppose to? They person that rebuilt my motor said that one of the clips that held the wire on the injector was broken and he "ziptied" it in place? Well, I'm really paranoid now and don't want to run any boost until I can make sure the secondaries are coming online.
I'm not a mechanic, but I can follow instructions...haha. How hard is it to get to the injectors? What at a minimum has to be removed? I do know electrical, and if it's necessary, I can replace the clips with new ones. Do I need to get those from the stealership or can I pick-up new clips at autozone?
I'm not a mechanic, but I can follow instructions...haha. How hard is it to get to the injectors? What at a minimum has to be removed? I do know electrical, and if it's necessary, I can replace the clips with new ones. Do I need to get those from the stealership or can I pick-up new clips at autozone?
06-13-06, 08:30 PM
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HAILERS
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Go to your ECU. PUll the small plug off. Find the secondary injector wires. Backprobe one secondary at a time.
Prior to that pull the vacuum line off your boost sensor and plug the line.
Start the car. The secondary injector will read battery voltage.
Rev the engine over 3500 rpm. The voltage will drop noticably, proving the clip is on the injector. Now backprobe the other secondary and repeat the above. Done. It's as simple as that.
Someone else can tell you how to repair injector harness. I done did my part.
Prior to that pull the vacuum line off your boost sensor and plug the line.
Start the car. The secondary injector will read battery voltage.
Rev the engine over 3500 rpm. The voltage will drop noticably, proving the clip is on the injector. Now backprobe the other secondary and repeat the above. Done. It's as simple as that.
Someone else can tell you how to repair injector harness. I done did my part.
06-14-06, 08:57 AM
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Drive.
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OK...this is bugging me...wtf can I find a diagram of all the ecu pin-outs for an 88 tII (n333 i believe)? I can't find a damn thing in these online manuals...and they take days to scroll through, I would think they would have a pinout in the fsm somewhere easy to find...but under the wiring diagrams section, I don't see ANYTHING that would show it.
06-14-06, 08:19 PM
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Drive.
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thank you j-rat....found it. I really need to buy a hardcopy of that manual....cause the online ones are nice and free....but a PAIN to browse through on the computer.
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06-15-06, 09:41 PM
#11
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If you want the "safest" way to do this, get the revs up past 4kRPM with as little pedal as possible.
Then slowly depress the gas, giving it more load.
If the secondaries are not firing, the engine will not rev anymore.
-Ted
Then slowly depress the gas, giving it more load.
If the secondaries are not firing, the engine will not rev anymore.
-Ted
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