Are you having the following problems and similar codes with your Discovery I?

- Stalling when idle or in drive at a stop sign or light
- Engine has a slight misfire or runs rough
- Hard to start when cold or hot
- Check Engine light shows p1316 p1177 p1179 (codes can vary slightly)

Many tech's try to use the code definitions to explain what's wrong. Saying it's your MAF, old lines and hoses, spark plugs, coils, timing, head etc. but you can waste time and money trying to locate the problem. Usually the symptoms and codes like this get worse over time until the vehicle won't start at all. Most of the time it's a fuel pump gone bad.

FUEL PUMP
Most of the time the fuel pump is failing. Before you do anything or buy anything ALWAYS check your fuel pressure when these symptoms occur. Have a mechanic do it or rent a gauge at your local parts store. The fuel pump is easy to change and corrects the problem when you have problems and codes similar to this. But this is all based on your fuel pressure test.

- GOOD LUCK