Car sometimes won't start

[RedAstig]

1.Had a 1988 MK3 7mgte, sometimes it wont start when I get inside my car on a parking lot.

2.Had a new starter already.

3.This thing is weird...its always happen only... I mean only in WALMART parking lot LOL.

4.Had to disconnect the battery for few minutes or play with the ignition key and it will start.

5..Remove the 1 clutch pedal switch and bypass it.

6. I notice this...everytime I lock my door if I go some store and when I get back to open it, sometimes it wont start. So I leave it open all the time and now its not happening anymore.

7. Ive heard its the alarm system doing this? can I remove it? and how?
please help guys...I appreciate it. God bless

[cre]

Yes, a tripped alarm will cause this... BUT it's hard to miss the alarm not going off every time before you find the car won't start. A bad starter-kill relay would be more likely. Is the factory alarm getting set off? Either way if any part of the alarm is to blame the engine will not turn over at all (the same for a bad starter solenoid and clutch safety switch). If it trues to turn over, then this is not likely to play any role in your problem.

Check out the thread about the resetting/deleting the stock alarm and also look at the FAQ about checking for diagnostic error codes in the ECU. They're both in the MKIII FAQ section.



EDIT: The next time this happens try locking the car back up, wait for the stock alarm to arm and then unlock the car via the trunk or the passenger side door. If this works then the issue is the disarm switch in the driver's side lock.