What is the different between code p0401 "EGR flow insufficient" and code p1491 "manufacture control: auxiliary emission controls"?
I heard that both those codes are related to EGR. But i had already clean the carbon in the
P1491 is "EGR valve lift insufficient detected" (see source)
The EGR valve is a servo mechanism; the vacuum control valve (follow the vacuum hose back from the EGR valve) applies vacuum to it until the lift is right based on what
| Oct 09, 2009
Honda OBD1 Engine Codes
Had to wire a check engine light in, as my cluster didn't have one. `Tied into the Green/Orange from the ECU and a 12v power source. I'm ...
How to get OBD Trouble Codes
www.vehix411.com hear is a list off all trouble codes for specific trouble codes that are not listed hear can be found on http sorry the list is ...
B18a1 Code 43
Freshly rebuilt motor. Changed used O2 sensor twice, changed 2 oem used FPR. Everything is stock with boltons and no intake leaks etc. obd0 ...
