October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Preliminary Check

Perform following preliminary checks:

Visually inspect engine compartment to verify vacuum hoses and spark plug wires are properly routed and securely connected.
Examine all wiring harnesses and connectors for damage.
Ensure all ground connections are clean and tight.
Ensure battery is fully charged.
All accessories should be off during diagnosis.