i but in a new battery and the car won’t start. had the distributor cap and rotor changed, spark plugs and wires. i also had a idle problem the rpm just jumps up and down.i don’t know after boosting the car it just did not drive at all i mean the rpm just droped. help .oh it’s a ka24de in a 89 body
What kind of noise does your car make when you try and start it?
Just a Click? Nothing?
Try and by-pass your stater solenoid… I think it built on the starter motor. Use the good ole scewdriver method.
If that works then your starter motor needs to be rebuild/replaced etc…
If it’s a M/T then put it in 1st get a friend to push you and slowly release the clutch while holding the key on the “START” position.
As easy as you may think that is, it usually takes 2 people, maybe 3 to get enough speed to push it, and it’ll work better in 2nd gear. BTW, this is known as push-starting 
~Simich
Check your intake/filter, check your MAF, you may have knocked the harness/plug loose…um…test the battery and/or ensure terminals are clean and connections are tight…any dimming/flickering lights on dash could be alternator…Could anything (sensors?) have been moved/hit during all this maybe?..how about some more details on what trying to start, and trying to drive produces.
Push-starting can be done with one person pushing, it’s just harder (i’ve done it). The thing is that he says the RPM’s are dropping when trying to drive…