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Originally Posted by tomtom72
Hi Greg, I'm an apprentice owner so I'm not too versed on Z's yet but you mean that the car runs fine unless you lean on it?
Reading your description I was thinking how similar mine behaved when the injectors were starting to short out but mine would not run at all without me feeling & hearing & smelling the miss...load or no load.
You don't have a SES light, not even a winking SES light? You checked for codes? How are the plugs, wires, coils? Fuel pumps & regulator & filter are okay? Anything the ECM monitors or controls will yield a SES light if a malfunction happens. You don't have a scanner, like a Tech 1A, to scan the motor with? This is stupid but it didn't have a backfire? Those will blow off the MAP hose. Sorry I don't have something better to say like it's "this"! Do you have the Helm manual? Looks like you have to start at the beginning. The dealer or any shop would do the same steps in the absence of a SES light to give hints of where to start looking. You know spark? Fuel? Vacuum leaks?
ttt! One of the more knowledgable guys will see this & have something for you.
Tom |
No SES light, no blinking. Since it has never come on, I haven't checked for codes.
I don't have a Tech 1 but I do have an old Monitor 2000 which I have used before to find my secondary air flap solonoid not opening(showed rich on the right side bank via O2 sensor reading when WOT).
As far as I know, the plugs, wires, etc are fine. I'm not sure how to check that BOTH fuel pumps are working. That could be something to check into.
I do know that various vacuum lines can blow off from a backfire. I have had an occasional backfire upon startup. Most of my vacuum lines are zip tied on tighter because of this.
As far as the MAP hose, are both ends visable(to the map and to the plenum I'm assuming) ? or do you have to pull the plenum to see if the hose is connected?