Will EGR cause no start?

In order to re-burn exhaust gases, the exhaust gas recirculation valve (EGR) introduces a measured amount into the intake manifolds. Your engine may not start when the valve is open. A stuck-open (EGR) valve can also stall and idle.

What does the a code p0400 mean on a car?

A code P0400 may mean that one or more of the following has happened: Plugged EGR passage which restricts the flow of exhaust gasses Faulty EGR solenoid wiring/harness Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve Since EGR valve designs are different, no one test will suffice:

What are the p0401 and p0403 codes on my Plymouth Voyager?

I have a 99 Plymouth Voyager with 150k miles. Service Engine light is on, and has P0401 and P0403 codes (insufficient EGR and EGR circuit). Originally I just had the 0401 and I replaced the EGR valve, but to no effect (yes, the valve works — applied vac…

What does the trouble code p0401 mean on a Toyota Corolla?

When the trouble code P0401 is set, exhaust gases are reintroduced to the combustion chamber at the incorrect time or in incorrect amounts, which does not decrease the oxygen level enough to prevent the increase of NOx. This is likely due to a faulty or clogged EGR valve or carbon buildup in the intake manifold or on the EGR temperature sensor.

What causes a p0400 code on an EGR sensor?

Code P0400 is triggered when the EGR temperature sensor does not see a temperature change when the EGR is commanded to open. These sensors tend to get a lot of carbon buildup that causes them to lose sensitivity to the heat from the EGR gases. Need help with a P0400 code?