Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- Medium
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $50 to $600
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P0370 Timing Reference High Resolution Signal A Medium
The P0370 code means the computer detected a general fault in high resolution timing reference signal A, which it uses to work out engine position precisely. It is mostly seen on optical distributors, where moisture or oil inside the distributor is a very common cause. The engine usually keeps running on the low resolution signal alone, but less smoothly.