R32 gtst startup probs

[timbar32]

Hey guys, I have an intermittant startup prob with my car at the moment. Sometimes on starting the car (has happened when its warm and cold) it idles very low, the hicas light flickers or stays on, it revs freely but this doesn't help the idle. I've cleaned the AAC and AFM, plugs were changed only 4000km ago, and usually it runs fine, which is what confuses me. Could this be the coil packs? Any ideas??

[unwritten law]

reset the ecu. You can check the resistance on ur coil packs by taking them out and putting a multimeter on them (+ & -). They should read between 0.6 and 0.9ohms. Make sure ur plugs are at the right gap too - what sort are u running?

How old is ur battery? Wouldnt be anything to do with auto electrics?

[CerealKiller]

I have a similar problem with the hicas light. except my eventually goes away. I reckon it's a problem with the power steering but i'm not too sure.

I used to have a starting problem (the car would idle really low and struggle to get to 1000rpm). I changed my fuel pump and the problem seems to have disappeared.

I reset my ECU on the weekend but I'm not sure if that's changed anything. (disconnect battery, press the brake down for a few seconds, reconnect the battery).

[MegaGTS4]

There is a switch on the power head on the steering rack that raises the idle so the car won't stall if there is increased load on the engine.

My guess is that this switch might be playing up.

If there is insuficant voltage in the system it will also make the hicas light come on.

EDIT:Also check power steering fluid.

Have you tried running hicas diagnostics?

HICAS Diagnostic:

It might require a few tries to make it work. Be persistant!

Procedure:

1. Ignition switch 'off' manual tranny in neutral or A/T in 'P'

2. Start the engine

3. Within 10 seconds after turning the key to 'ON', start the engine, turn steering wheel from left to right 20 degrees from neutral 5 times or more times & pump the brakes 5 times. Then press the brake pedal again to enter the test mode.

4. Turning the steering wheel left or right past 20 degrees from neutral will cause the rear wheels to turn slightly (~1 degree) (1.).

5. Drive the car forward 15 feet under 9mph to enter the full diagnostic mode.

6. The HICAS dash light will flash a code indicating any problems. Long flash is first digit, short flash is 2nd digit.

7. Diagnostic mode is exited when: ignition is turned off, vehicle speed exceeds 9mph, or diagnostic has operated for 5 minutes.

HICAS light codes for '90-'93:

1. HICAS solenoid R.H.

2. HICAS solenoid L.H.

3. Cut-off valve

4. Power Steering solenoid

5. Vehicle Speed sensor

6. Steering angle sensor

7. Steering Neutral positon sensor

8. A/T: Parking Brake Sensor M/T: Clutch sensor

9. A/T: Inhibitor sensor M/T: Neutral sensor

HICAS light codes for '94-'99:

11. HICAS control unit

12. HICAS motor power supply not present

13. HICAS motor output not present

21. Vehicle speed signal not present

22. Steering angle sensor angle signal not present

23. Steering angle sensor neutral not present

24. Rear main sensor input not present

25. Rear sub sensor input not present

31. Parking brake sensor input not present

32. Inhibitor switch (A/T) or nuetral switch (M/T) input not present

33. Engine speed signal not present

MEGA

[timbar32]

Cheers guys, topped up my powersteering fluid, and it hasn't happened since, Although the hicas light still comes on after driving straight for a while. Probably more to do with my Momo wheel. I think that I'll try hicas diag. anyway. Thanks for your help!