95 CAVALIER CRANKS BUT WONT START
10

Asked by Greg Aug 01, 2012 at 06:25 PM about the 1995 Chevrolet Cavalier LS Sedan FWD

Question type: Maintenance & Repair

CAR JUST DIED WHILE DRIVING NO SPUTTER NOISES OR ANYTHING JUST DIED
HAS  SPARK AT PLUGS. HAS FUEL. INJECTOR VOLTAGE PULSES TO 1.5 LIKE THEY SHOULD
SCANED WITH ACTRON CP9145 SCANNER AND IT BRINGS UP NO DTC
DATA IS:
A/F DESIRED        7
LT FUEL TRIM      128
ST FUEL TRIM      128
LT FUEL TR CL       21
BARO V                 4.96
BARO (“HC)        30.63
CLNT STRT          86
EGR SOL              OFF
EXHAUST 02      LEAN
FUEL CUT OFF   NO
IAC POS               116
INJ PW(MS)        21.8
KNOCK RET         0
LOOP STATUS     OPEN
MAP C “HC”        28.99
MAP     (V)             4.67
IAT                         95
025 (MV)              462
025 CROSSCNTS  0
PNP SWITCH        P/N
PROM ID               1893
SPARK ADV           3
TPS SENSOR(V)     0.43

5 Answers
69,835

John answered 12 years ago

How exactly did u check ur injector pulse voltage.... oscilloscope?

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10

Greg answered 12 years ago

voltage meter at wire plugs to the 4 injectors. like you would check with noid light only I used the volt meter

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69,835

John answered 12 years ago

Srry for the delay. Check the resistance on each injector. And check crank sensor look at rpms while cranking. If you don't have a way to do that then check the sensor for pulses while cranking with a dvom

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10

Greg answered 12 years ago

it was a timing broken timing chain. thanks everyone.

1 people found this helpful.
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