# Codes

**URL:** <https://community.cartalk.com/t/codes/55791>\
**Category:** Maintenance/Repairs\
**Tags:** focus, ford\
**Created:** [September 30, 2010, 7:21pm UTC](https://community.cartalk.com/t/codes/55791 "2010-09-30T19:21:01Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Charles5200](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@Charles5200](https://community.cartalk.com/u/Charles5200)\
**Post date:** [September 30, 2010, 7:21pm UTC](https://community.cartalk.com/t/codes/55791/1 "2010-09-30T19:21:01Z")

</div>

I have a 2001 Ford Focus with a manual transmission and the code I got at O’Riely’s #1 cyclinder missing. I have already replaced the plugs and wires. more about the car on post June 29 2010

---

<div class="post-metadata">

**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [September 30, 2010, 7:22pm UTC](https://community.cartalk.com/t/codes/55791/2 "2010-09-30T19:22:13Z")

</div>

How about a compression test?

---

<div class="post-metadata">

**Author:** ![Charles5200](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@Charles5200](https://community.cartalk.com/u/Charles5200)\
**Post date:** [September 30, 2010, 7:23pm UTC](https://community.cartalk.com/t/codes/55791/3 "2010-09-30T19:23:18Z")

</div>

I enter the code incorrectly PO301

---

<div class="post-metadata">

**Author:** ![Charles5200](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@Charles5200](https://community.cartalk.com/u/Charles5200)\
**Post date:** [September 30, 2010, 7:24pm UTC](https://community.cartalk.com/t/codes/55791/4 "2010-09-30T19:24:13Z")

</div>

I get 30 highway and around 23 city mpg

---

<div class="post-metadata">

**Author:** ![Charles5200](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@Charles5200](https://community.cartalk.com/u/Charles5200)\
**Post date:** [September 30, 2010, 7:25pm UTC](https://community.cartalk.com/t/codes/55791/5 "2010-09-30T19:25:34Z")

</div>

sticky valve?

---

<div class="post-metadata">

**Author:** ![Charles5200](https://avatars.discourse-cdn.com/v4/letter/c/e9c0ed/32.png) [@Charles5200](https://community.cartalk.com/u/Charles5200)\
**Post date:** [September 30, 2010, 7:32pm UTC](https://community.cartalk.com/t/codes/55791/6 "2010-09-30T19:32:10Z")

</div>

What would a compression test show?