![\"2006](\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/10\/2006-ford-500.jpg\")
I used the OBD II \/ EOBD CODE READER and found the following code(4 error codes)
\nP0171 System too lean Bank 1
\nP0374 Timing Reference Hig n Resolution Signal A No Pulses
\nP0171 System too lean Bank 1
\nP0374 Timing Reference Hig n Resolution Signal A No Pulses
\nThe same code reader gave me RPM(rpm): 705.50 while the engine was running but the gear was in Parked position<\/p>\n
I don\u2019t feel anything while driving the 2006 Ford Five hundred SEL (I don\u2019t have much knowledge about vehicles). It accelerates well and goes easily to 40miles per hour when given the acceleration (I have not tried beyond 40 miles\/hr in order to avoid any damage, as I bought it recently and want to repair it before use). The odometer reads about 200,000 miles.\u00a0 I showed to a local mechanic he said the gear is either in 2nd or 3rd (limp mode) after a short test drive, which made me little worried, what can be the possible reasons of this errors and what should I do to make it a smooth running vehicle?<\/p>\n
RESPONSE<\/p>\n
Not sure if you made an error yourself when posting the codes but you show only 2 codes and posted them twice. None of the codes indicate anything to do with the transmission. There shouldn’t be any correlation between the two codes. So, look at them separately. As for code p0374 the Optical sensors are the camshaft and crankshaft sensors.<\/p>\n
The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM<\/b><\/a>) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM<\/b><\/a> for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It’s based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.<\/p>\n I used the OBD II \/ EOBD CODE READER and found the following code(4 error codes) P0171 System too lean Bank 1 P0374 Timing Reference Hig n Resolution Signal A No Pulses P0171 System too lean Bank 1 P0374 Timing Reference Hig n Resolution Signal A No Pulses The same code reader gave me RPM(rpm):… Read More »Code P0374 2006 Ford Five Hundred<\/span><\/a><\/p>\n","protected":false},"author":14091,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[5,1],"tags":[9190,11121,11122,9191],"class_list":["post-37334","post","type-post","status-publish","format-standard","hentry","category-ford","category-auto-repair-questions","tag-9190","tag-code-p0171","tag-code-p0374","tag-five-hundred"],"_links":{"self":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/37334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/users\/14091"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/comments?post=37334"}],"version-history":[{"count":0,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/37334\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/media?parent=37334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/categories?post=37334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/tags?post=37334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Code P0374 Possible causes<\/h4>\n
– Timing Reference Optical Sensor harness is open or shorted
\n– Timing Reference Optical Sensor circuit poor electrical connection
\n– Faulty Timing Reference Optical Sensor
\n– Damaged Powertrain Control Module (PCM)<\/a><\/div>\n![\"Sensor](\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/11\/engine-component-location-diagram-2006-ford-five-hundred.gif\")
<\/div>\n","protected":false},"excerpt":{"rendered":"