diff --git a/firmware/config/engines/bmw_e34.cpp b/firmware/config/engines/bmw_e34.cpp
index e35e20596f..8ecaf09d1d 100644
--- a/firmware/config/engines/bmw_e34.cpp
+++ b/firmware/config/engines/bmw_e34.cpp
@@ -78,6 +78,7 @@ void setBmwE34(DECLARE_ENGINE_PARAMETER_F) {
 	engineConfiguration->cranking.rpm = 600;
 	engineConfiguration->crankingInjectionMode = IM_BATCH;
 	engineConfiguration->cranking.baseFuel = 7;
+	// enable constant_dwell
 	engineConfiguration->useConstantDwellDuringCranking = true;
 	engineConfiguration->ignitionDwellForCrankingMs = 6;
 
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index cc4865ae82..3f77c405a4 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -825,6 +825,8 @@ static void setSpiMode(int index, bool mode) {
 static void enableOrDisable(const char *param, bool isEnabled) {
 	if (strEqualCaseInsensitive(param, "fastadc")) {
 		boardConfiguration->isFastAdcEnabled = isEnabled;
+	} else if (strEqualCaseInsensitive(param, "constant_dwell")) {
+		engineConfiguration->useConstantDwellDuringCranking = isEnabled;
 	} else if (strEqualCaseInsensitive(param, "cj125")) {
 		boardConfiguration->isCJ125Enabled = isEnabled;
 	} else if (strEqualCaseInsensitive(param, "engine_sniffer")) {