I have a 1995 isuzu pickup it giving me error codes 15 and 34 and I've already been to 3 repair shops and can't get it fixed can you give me some help

Should b a data code some where on the bell housing also u can call the dealer service shop give them your vin number and they can look it up

If the mirror plug has wires you can see, match these to the colours in the door wires.
if not you could pull off the other side mirror and look at the pinout on that mirror - if they are not all the same, at least the power wires should be the same colour - connect the colours that are the same and you may be able to work out the rest by trail and error.

Check fuel pressure, check exhaust back pressure.

note that there is no mention of any fault codes so unless the fault codes are read then fixing by guessing is frustrating and costly

Hello ipontrees40: My name is Roger and I will help with your answer. Locate the ECM on the left kick panel. There will be a lead of wires that has 3 leads hanging. Connect the white and black wires together. Turn the key on and observe the check engine light. Should flash i sequeince of 12, will flash once pause followed by two quick flashes. This is code 12. Any codes after the 12 will be stored codes. Be sure not to start the engine when checking the codes. Should you start the engine you may not receive the correct information. The codes will be read as slow flash followed by a long pause followed by quick flashes. For examle a code 42 would be 4 slow flashes followed by 2 quick flashes. After the computer has read all storer codes it will go back to code 12. After you repair the problem you can clear the codes by either removing the negative battery cable or #3 fuse for ten seconds. Remember just because there is a code does not mean that part is bad. You need to follow basic trouble shooting to make a propper repair. Just replacing parts becomes expensive. I attatched a picture of the jumper wires to the computer to help in identifying them .
Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

For 1995 Isuzu Truck Pickup 4WD 2.6L MFI 4cyl check this...

Fig. 16: 1988-95 2.6L Pick-Up (Federal)

Fig. 17: 1988-95 2.6L Pick-Up (California)


Hope this helps (remember to rate thuis answer).

if you have already replaced the booster, it is probable that the vacuum pump is the culprit.

if their going to repair it already about less than an hour.

if the grille screws are accessable remove the grille which should give you access to the underside of the lock, you may need a screwdriver to push the lever aside to release the hood
Hope this helps

i had the same problem and it turned out to be the vehicle speed sensor. it took about 6 months for it to start giving me an engine code but sure enough, replaced it and had no more problems.