View Single Post
  #3  
Old 08-09-2005, 08:19 PM
cnctony cnctony is offline
Machine man
 
Join Date: Jul 2005
Location: Friendswood Texas
Posts: 32
Cold start problems

First I would get some basic information on your cars condition.

1. Remove spark plugs one at a time and examine or replace. 12.00
2. Remove dist. cap and clean or replace, 85.00 rotor 30.00.
3. Measure spark plug wires with ohm meter or replace. 100.00 wires,

4. Check and or replace air cleaner.
5. If everything looks good then on to the next step. Its still good to do a tune up.
6. Fill up with Chevron with Techron 93 superU and take it out on the highway.
7. Smell exaust. NOT FOR TOO LONG! to see if it smells like gas.too rich. Could be a sign of a bad oxygen sensor or misfire or stuck cold start valve. Could be a multitude of things. DO NOT USE BOSH PLATINUM spark plugs as they all have resistors in them and should not be used on your car.

8. Oxygen sensor test Using a Oscope or borrow one from a friend remove floor cover and mat in passenger side you will see two connectors one has 2 white wires(disconnect then start engine and check voltage. You should have 12vdc.) The other connector is a single black wire very carefully using the sharp oscope probe tip puncture the black wire and connect the ground to chassis ground around door or lighter. You should see a nice sine wave around 0.2 to 0.8vdc. The frequency should be equal to or faster than 300miliseconds. if slower replace sensor.


I don't believe you can disconnect the KE Fuel injection system and still pass emisions and keep from damaging your cat and keep the car running well. The connector to the KE unit is behind the battery. Just disconnect the OVP relay and the KE unit will not function. Try it. I dont think it will solve your problems though. Here are a few items to check:

Cold start valve Check
Idle Speed control valve Check
OVP relay Check
Temprature sensor defective check
Electro-hydraulic actuator catches check
Fuel pressure incorrect.

Keep trying youll get it or just bite the bullet and pay pay pay.

Good luck
Anthony
Reply With Quote