ok i have a 91 hatch with a d15b7 dpfi in it now the problem only started resent but when u drive i cant go past 4k or it hesatets and some time the check engen light comes on sometimes it doesnt any one got any ideas?

 

Pull the front passenger carpet back and read the CEL code(s) blinking from the LED on the ECU.

 

how do i read teh beeps and with key to on or car running ?

 

 

ron i get a code of 1 and 10 how do i fix ?

 

Code 1 = potential problem with O2 sensor or fuel pressure regulator
Code 10 = potential problem with intake air temperature sensor

1) Check whether the intake air temperature sensor is disconnected.

2) Remove the HAZARD fuse in the main fuse box for a few minutes and then reinsert. This will clear the codes from the ECU. Drive the car to see whether the CEL again turns on and whether the same CEL codes are blinking from the ECU. If so, this would warrant troubleshooting both codes.

 

were is the air temp sensor located ?

 

 

would u recomend replacing both 02 and air sensor

 

Not yet. First reset the ECU and check whether the codes repeat.