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When

3-Digit Code Definitions

KOEO

CM

KOER

172

X

HEGO sensor circuit indicates system lean (right side)

173

X

HEGO sensor circuit indicates system rich (right side)

174

X

HEGO switching time is slow

175

X

Fuel system at adaptive limit, HEGO unable to switch(left side)

176

X

HEGO sensor circuit indicates system lean (left side)

177

X

HEGO sensor circuit indicates system rich (left side)

178

X

HEGO switching time is slow.

179

X

Right side still rich, at leanest adaptive limit, during part throttle.

181

X

Right side still lean, at richest adaptive limit, during part throttle.

182

X

Right side still rich, at leanest adaptive limit, at idle.

183

X

Right side still lean, at richest adaptive limit, at idle.

184

X

MAF higher than expected

185

X

MAF lower than expected

186

X

Injector pulse width longer than expected

187

X

Injector pulse width shorter than expected

188

X

Left side still rich, at leanest adaptive limit, during part throttle.

189

X

Left side still lean, at richest adaptive limit, during part throttle.

191

X

Left side still rich, at leanest adaptive limit, at idle.

192

X

Left side still lean, at richest adaptive limit, at idle.

193

X

Flexible Fuel sensor circuit failure.

194

X

Run cylinder balance diagnostic test.

195

X

Run cylinder balance diagnostic test.

211

X

Two or more successive erratic Profile Ignition Pickup (PIP) pulses occurred, resulting in a possible engine miss or stall.

212

X

Loss of IDM input to EEC or SPOUT circuit grounded.

213

X

SPOUT circuit open

214

X

Cylinder Identification (CID) circuit failure

215

X

EEC detected coil 1 primary circuit failure

216

X

EEC detected coil 2 primary circuit failure

217

X

EEC detected coil 3 primary circuit failure

218

X

Loss of IDM signal (left side)

219

X

SPOUT failure, spark timing has defaulted to 10 degrees BTDC.

222

X

Loss of IDM signal (right side)

223

X

Loss of Dual Plug Inhibit control