Engine codes

[sn97gtnyg]

Ok so my check engine light came on the other day and sincie my car is due for inspection i took it to my garage to see if it would pass. These are the codes that the comp read out.

• P0161 02 heater fault
• P0156 02 circut fault
• P0402 EGR Excessive flow
• P1405 DPFE sensor upstream problem
• P1270 engine RPM speed limiter reached

what do all these mean??? How can i fix them and how much will it cost. The guy before me put in a speedometer callibrater i think so that could be the " rpm speed limiter reached "

 

[sn97gtnyg]

please help any adivce will help me at this point!

 

[19mustang95]

im guessing you have an O/R midpipe..the first 4 codes are from that, the last one is because you drive your car like a racecar and hit the limiter. :hammer:

 

[sn97gtnyg]

i think its because i rev it alot...... i always shift at 2500 in 1st and 2nd and 3500 in 3rd and 4th but i have a catted midpipe.....

 

[sn97gtnyg]

how can i get it to pass immessions test...