If you have landed on this page, you are likely holding a Blue Point EECR1A code reader, or you are searching for the elusive documentation that goes with it. Whether you are a professional technician in a busy auto shop or a DIY mechanic working on a weekend project, having the correct manual for your scan tool is non-negotiable.
If you cannot locate a physical copy of the manual, bookmark this article. It consolidates the essential wiring, code reading, and troubleshooting data originally printed by Blue Point. Keep your EECR1A in your road kit, keep these instructions handy, and you will keep those classic Fords running for another 30 years. This article is for informational purposes. Always refer to the vehicle’s factory service manual in conjunction with the Blue Point EECR1A manual. The author is not affiliated with Snap-on or Blue Point. blue point eecr1a manual
The Blue Point EECR1A, distributed by Snap-on’s industrial brand, is a specialized OBD1 code reader primarily designed for from the 1980s and 1990s. Unlike generic modern OBD2 scanners, this unit requires specific wiring, key-on-engine-off (KOEO) sequences, and code interpretation methods. If you have landed on this page, you
| Code | Meaning (KOEO/KOER) | | :--- | :--- | | 11 | System Pass (No errors) | | 21 | ECT sensor out of range | | 23 | Throttle Position Sensor (TPS) stuck | | 31 | EVP or PFE circuit fault | | 33 | EGR valve not opening | | 41 | HEGO (O2) sensor lean | | 42 | HEGO sensor rich | | 63 | TPS circuit low input | | 73 | Insufficient TPS change during KOER test | | 95 | Fuel pump secondary circuit fault | It consolidates the essential wiring, code reading, and