Recently my check engine light has been comming on whenever i downshift and slow the car down using the engine... It only stays on for a split second or two untill i tap the gas...
Today i went to check the codes and got this..

1.) 3 short blinks - Code #3: Crank Angle Sensor
2.) 1 long, 2 short - Code #12: Throttle Sensor (Full Range)
3.) 3 long, 3 short - Code #33: Port air solenoid Valve

Ok now since i have got the codes i need your guy's help.. What should i start taking apart or adjusting or replacing?
BTW, the car runs fine other than the light comming on...

1990 GXL

Thanks

 

I have the same car, what tool did you use to pull the codes? Not trying to hijack your thread, but I'm curious and didn't want to get flamed for starting a thread asking such as that.

 

hrmm, something isnt right. pull the negative battery cable for at least 5 seconds, put back on, check codes again.

03
crank angle sensor (g sensor) >>
broken wire, short circuit >>
fuel injection and ignition cut

your car runs, that obviously cant be a current problem (though an issue that may need to be looked at).

12 Throttle sensor (full range)
broken wire, short circuit
throttle valve opening angle signal fixed at 20%

according to this, much off 20% and you should be running richer or leaner (depending +/-)

i dont know what the port air solenoid valve does. definately reset ecu and try again.

 

http://www.1300cc.com/howto/how2/codes.html

male end to insert into clip; 1-2 foot wire; gator clip

 

Ok i will have to get back to you guy's in a bit because the check engine light only comes on very rarly... Maybe about once a week or so for about 30mins at a time.. going on and off..

Yes the car runs fine.... Maybe a tiny bit power than normal... If i redline in 1st or 2nd i can really feel a "boost" around 6000RPM... Does this have anything to do with any of my codes?

 

I just used some old speaker wire laying around...