87 camry cold start problem

[vnordesty]

I've got a 87 Camry that wont start when it has sat overnight. The problem occurred suddenly one morning in July. It will crank and crank endlessly but won't start. Since I live on a hill, I tried a rolling jumpstart, and it fired up perfectly, idles well. when I tried to get it to go up the hill, it wants to stall, but if I keep the RPM's up, it does just fine. Once it is up to proper operating temperature, it starts ok and runs perfectly. It can sit all day while I'm at work, and starts just fine in the evening. But the next morning, I've got to roll it down the hill again.

The cars got an 2.0 I-4 and 177k on it, and little maintenance has been done in the last 12k miles since I've owned it. I am convinced it cant be an electrical problem. Originally I though it may be the fuel pump, but after the jumpstart, I ruled that out. Then I thought it may be the fuel filter, but since it runs perfectly at all other times, I ruled it out. I am thinking now it may be the cold start injector. I checked the resistance like the shop manual says, and got 0.0 ohms, where its supposed to be 2-4 ohms - but I've never done that test before, so I don't know if I did it right.

The dealer ants $160 for this tiny little part - since I'm not sure this is the problem, I'm reluctant to spend that much on it. Any comments?

[gelcol]

have you check this ff:
1. Battery dischargeed or low.
2. malfunctioning fuel system.
3. injector leaking
4. distributor rotor carbon tracked.
5. cold start injector check and replcement ,
unplug the elect. connector from the cold start injector. using an ohm meter meassure the resistance should be 2 -4 ohms if 0 then
relieve the fuel pressure located on the fuel rail detach the negative battery cable 1st ,detach the vacum sensing hose near fuel rail place a shop towel or metal container under the banjo bolts the middle one then slowly remove along with the crash washers discard crushwashers,then remove the 2 remaining bolt, separate the regulator from fuel rail and regulator remove fr. the vehicle for clarity installation is the reverse of the removal use new crush washers and be sure that the pressure regulator is install properly on the fuel rail seal it properly.

[vnordesty]

Thanks for the reply -

under #5 - when you say fuel rail I guess you mean the the tube that says EFI on it. Which vaccuum sensing hose are you referring to ? I borrowed a shop manual for the car and the tried to follow the procedure. Can the resistance can be different whether there is pressure on it or not? When I got 0 I think I had the injector out and unhooked from the fuel line and all. When I jumped the 2 wires in the test bock, no gas squirted out from it at all. I tried cleaning it, to no avail. This is why I think I should replace it.

[gelcol]

theres a picture on hanes book

[Brian R.]

No, the resistance on the cold-start injector will be the same with or without pressure.