newbe help
#106
Join Date: Mar 2008
Location: Pacific Northwest USA
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Good! We'll assume the the injectors have power as well....as they only way they wouldn't is if they were disconnected from the resistor pack. Not likely
Now.....
1) Along the water rail....the pipe-like piece with the various temperature switches....there should be a single wire (white/black) with a bullet connector mid-way. See it?
Is this wire in good condition and it is attached to the "negative" post on the coil? This is the trigger wire for the fuel injection ECU in the boot. This is the wire that tells the ECU "Go to work" !
2) Next, remember to check the bundle of ground wires at the rear of the water rail. Make sure the connection is clean and tight....and that none of the wires have broken off. If a wire broke off it might be dangling out of sight. This is the ground point for the ECU and the entire fuel injection system. The fuel injection system cannot operate without these grounds intact....it'll be several black wires with ring connectors under a bolt head.
Cheers
DD
#109
#110
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#114
has someone else (other than you), worked on the car after it refused to start?
have you really really checked all the ground wires that Doug told you? Specifically a group of black wires and a small silver Ground Strap bolted to the top side of the cylinder head, (water rail), at the rear of the engine in the passenger side, near the battery. The wires are all on Ring Terminals, double check that one of the wires has not come off its ring terminal, the bolt can be removed with a ½" socket. While you're there: nearby, in front of, and lower than the battery, there is a black rubber plug which mates with another wiring harness plug; wiggle those plugs, one to the left, one to the right, as you push them together real tight.
Last edited by Jose; 10-06-2012 at 05:46 PM.
#115
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If the starter works OK you don't have to concern yyourself with the black/green wire.
The black wire at one of the starter relay bolts.....not sure what that's for.
Cheeers
DD
#116
Join Date: Mar 2008
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We might be getting somewhere.....
OK, you have voltage TO the injector resistor pack BUT the noid light isn't blinking.
As I see here are the possibilities:
1) Dead resistor pack (not sure how to bench test the resistor pack)
2) ECU not grounding the injectors (no DIY test for the ECU. As Jose says, they seldom fail. But seldom isn't the same as "never")
3) ECU trigger wire from coil negative post is no good/broken
(Did you check this?)
4) Injector harness isn't connected to the resistor pack (not likely at all)
5) ECU not grounded (but you've checked the ground wires so scratch that off the list)
7) ECU not being powered up by the main relay (besides giving voltage to the resistor pack the main relay also powers the ECU....brown/slate wire at the ECU connector)
8) This is iffy because I'm not sure if it is true...but you can check it anyway: check the wiring at the coolant temp sensor. If the coolant temp sensor is unplugeed the engine will instantly die. Some say this happens becuase of instant and massive over-fueling. Others say that unplugging the coolant temp sesnor cuts off the injectors. So, if a CTS wire or connector was broken then it would be the same as unplugging it....which might kill the injectors
Cheers
DD
#117
hope were are
Jose,
iam the only one whos been working on it. i checked all what Doug said a few times.thanks
Doug,
ecu trigger wire is good but ill put a new connector on on anyway.
ill check the ecu brown/slate wire at ecu tomorrow.
The CTS wire is not good. i messed with it cuz the the rubber boot is gone before doing alot of the other stuff. I didnt think it would affect the no start and the connection is ..soso. I made it tight....or so I thought but maybe needs a new connection or sensor... ill check this tomorrow as well.
I think I covered everything else more tahn once.. i guess iam at either a new resister pack, ecu or the connections you guys said..thanks
iam the only one whos been working on it. i checked all what Doug said a few times.thanks
Doug,
ecu trigger wire is good but ill put a new connector on on anyway.
ill check the ecu brown/slate wire at ecu tomorrow.
The CTS wire is not good. i messed with it cuz the the rubber boot is gone before doing alot of the other stuff. I didnt think it would affect the no start and the connection is ..soso. I made it tight....or so I thought but maybe needs a new connection or sensor... ill check this tomorrow as well.
I think I covered everything else more tahn once.. i guess iam at either a new resister pack, ecu or the connections you guys said..thanks
#118