Having problems with your 1999 Jeep Grand Cherokee ?

99 jgc v8 used to get 18 mpg now gets 4-10mpg has codes

\015 Has 6 codes PO202,P0203,P0206,P0208,P0133,P0171 RUNS A LITTLE RUFF AT IDLE BUT FIN OFF IDLE.\015 Posted / edited by AnonymousUser on : 22-01-2018

Answers :

P0202,203,206,208 are injector control circuit issues, this means it is either wiring harness related or powertrain control module related, P0133 and P0171 are O2 switching issues, this may be related to the injector circuit problem since it is a fuel control issue. This one is going to ake a trip to the dealer to sort out.
The 0200-0299 codes are injector circut malfunctions, haw many miles are on the vehicle?\015\012
\015\012The oxygen sensor is bringing up the 0133 code has this ever been changed?\015\012
\015\012P0171 is another lean running problem i would account to the oxygen sensor which i would replace to see if this clears your problems. May need to get your injectors checked, but i would replace the oxygen sensor first.
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99 jgc v8 used to get 18 mpg now gets 4-10mpg has codes


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