1994
Nissan
Altima GXE
4 cyl
47,000 miles


On the way to a job interview, the car starts bogging down and eventually dies.
It wont turn over, you can smell alot of gasoline.

New on the car is- Alternator, starter, clutch, clutch master cyl. Battery, new spark plugs and wires, new K&N cold air intake, new frontmount intercooler. new stage 3 NISMO turbo. Port and polished heads. new magnaflow offroad H pipe exaust.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.


2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.


3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.


4) Perform a complete compression test and record the results. All cylinders should be over 120lbs in most cases and all be within 10% of each other.


Once you have determined which of these functions has dropped out,
you will know which system is having the problem.




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