Stutter problem when accelerating '93 Camry V6

Hi there,

If the car has not had a tune up for some time, get that sorted first. Change Air & Fuel, filters, replace spark plugs and ignition leads. To replace the rear spark plugs the plenum chamber must be removed, this may be beyond your capabilities. These rear spark plugs are normally Iridium and don't need to be replaced for 100,000 Km. (60,000 MLS) front plugs are standard. The ignition leads are not cheap so be sure that they are faulty before replacing. A work shop will be able to read the Kva (voltage ) and check resistance to see if they are OK. Also get a ecu fault code read out this will help determine and faults in the engine management system.

Good luck

Mark (mhpautos)

If you're in the United States go to autozone and get read for free and comeback with the OBD2 code/s and report your findings to Mr. Mhpautos

Okay I misque this one thought it was 98

Find the diagnostic connector upfront jumper TE-1 to E-1 turn key On count the flash X XX X XX X XX
means code 12

I just use 12 for an example. Its gonna flash then its gonna flash flash

BTW where did you came up code 12 being the fuel pump relay look below

Read the flashes and comback with it. See below for your codes

Diagnostic Trouble Codes - 1993
Toyota
12 Engine RPM Signal.
13 Engine RPM Signal.
14 Ignition Signal.
16 ECT Control Signal.
21 Oxygen Sensor (OS) Signal.
22 Water Temperature Sensor (THW) Signal.
24 Intake Air Temperature Sensor (THA) Signal.
25 Air/Fuel ratio lean.
26 Air/Fuel ratio rich.
27 Sub-oxygen sensor signal.
28 Main Oxygen Sensor (OS) Signal.
31 Air Flow Meter Signal.
32 Air Flow Meter Signal.
41 Throttle Position Sensor (TPS).
42 Vehicle Speed Sensor (VSS) Signal.
43 Starter Circuit Signal.
51 Switch Condition Signal.
52 Knock Control Signal.
71 EGR system malfunction.

Find the diagnostic connector upfront jumper TE-1 to E-1 turn key On count the flash X XX X XX X XX"

You jump this terminals and with the key On, the CEL will start flashing. Again 1st flash will indicate the first no. Then it pauses then it will flash the 2nd digit no.

Note: it will flash 3 times for the same code. If there's more in it it will flash the next one.