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Ok how good are you folks, 2002 isuzu rodeo 4dr 4we

Customer Question
Ok how good are you...
Ok how good are you folks
JA: What is the make/model/year of your car?
Customer: 2002 isuzu rodeo 4dr 4we automatic
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Gotta fix it myself
JA: Anything else you think the mechanic should know?
Customer: Long complicated story
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mechanic about your situation and then connect you two.
Customer: No thanks
Submitted: 1 year ago.Category: Car
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Answered in 5 minutes by:
6/17/2016
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago
CHRIS ZAPANTIS
Category: Car
Satisfied Customers: 159
Experience: AUTO TECH at G&M EXXON
Verified

Hello I'm Chris. What is going on with your Rodeo?

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Customer reply replied 1 year ago
No start ran fine before. Parked it cranks but no start no fire no fuel pulse codes for gps 1 and aps2 replaced both no change returned them. Reference voltage 5vlts some areas .g volts on others.
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

What are you losing reference voltage on?

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Customer reply replied 1 year ago
4 volts reference on tps1 .4 volts reference on crank sensor signal voltage is 5 volts. Reference volts to positive on battery 12 ish volts.
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

is tht .4 on tps1 and.4 on crank?

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

is the engine a 2.2 or 3.2?

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Customer reply replied 1 year ago
no 5 volt reference on either line or apps pedal sensor however apps 1 pedal sensor has 5 volts and apps 3 pedal sensor has 5 volts reference
Customer reply replied 1 year ago
3.2
Customer reply replied 1 year ago
Does the 2002 rodeo have and addtipnal pcm/ ecm located under the dash other than the one under the hood drivers side near firewall
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

Ok first ide like to start by telling you that these things have big problems with their engine wiring harnesses and they usually throw tps codes when they get them

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Customer reply replied 1 year ago
Unwrapped tugged on harness clipped the reference wire from the pc to tps 1 editing the pcm exit voltage .4 volts
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

so you have .4 right out of pcm?

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

the codes you had were any of these 1195 p1295 or p1515

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Customer reply replied 1 year ago
leaving the pcm to gps 1 is .4 volts as well as aps 2 and crank sensor. The codes look familiar but they vary according to which sensor I have unplugged
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

I JUST noticed yor other question the pcm is 1 and its located on the drivers fender area

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

By the air filter

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

can you erase the codes and crank to see what comes back?

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Customer reply replied 1 year ago
Thats the one I am testing original codes 1280 1290 1125 1295 1120 1220
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

I'm almost certain its in the harness. Can you unclip the computer and wiggle that harness that goes to the head? Most of the problems occur in there. Watch the tps voltage as you are doing it.

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Customer reply replied 1 year ago
I can plug in all sensors but the crank sensor it a pain to get to and pull codes from there. Crank sensor plugged in reads no rpm on live odb2 while trying to crank over just so you know
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

don't worry about crank I'm worried about tps voltage as you wiggle the harness. Make the harness as loose as you can.

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Customer reply replied 1 year ago
Already did that twice still no start harness wrapped and unwrapped
Customer reply replied 1 year ago
Know about the 90 degree angle on the harness straightens that out as best I could no change in voltage
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

does it crank?

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Customer reply replied 1 year ago
It does crank just no start and no fire to coil packs
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

yo have injector pulse when the ckp was in?

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Customer reply replied 1 year ago
No pulse via noid lightthe tps makes a high pitched whine when the key is in run position then stools whining very shortly
Customer reply replied 1 year ago
Stops not stools
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

lol

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Customer reply replied 1 year ago
Hate autocorrect
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

I definitely think its still a harness problem. I personally would try running my own wires from pcm to throttle body.

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Customer reply replied 1 year ago
Jumped the good reference 5 volt to the bad .4 wire no change
Customer reply replied 1 year ago
Grounds read good on all sensors by the way
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

did you disconnect the 5 volt references one by one to see if one of the is pulling others down?

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

but that should of thrown other codes

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Customer reply replied 1 year ago
far I have disconnected the crank and throttle body. No change still .4 volts. Last one in the chai. Is the pedal sensor I think unless you k ow of other I es
Customer reply replied 1 year ago
Ones not I es
Customer reply replied 1 year ago
Give me a 67 bug just hit stuff with a hammer it works
Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

With the original codes I have fixed them all by bypassing the wire harness to tb. There's nothing else that I can do for you right now. You will have to either trust me or I can opt out and you can get a second opinion from another tech.

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

The only thing that bothers me is that you have no spark

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Auto Mechanic: CHRIS ZAPANTIS,
 replied 1 year ago

Unless of course that's another wire that went bad or a bad pcm.

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Customer reply replied 1 year ago
Got a pcm coming tomorrow will try to bypass the harness if the pcm replacement does not work will let you know might help someone out down the road somewhere
Auto Mechanic: Wayne Crawford, Shop Owner replied 1 year ago
Wayne Crawford
Wayne Crawford, Shop Owner
Category: Car
Satisfied Customers: 4,030
Experience: General Repair Shop Owner
Verified

Hello. My name is***** you still need help? I see you opted out your previous expert.

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Customer reply replied 1 year ago
2092 rodeo no start condition
Auto Mechanic: Wayne Crawford, Shop Owner replied 1 year ago

I gathered that., I read through this whole post.

BUT the last thing I see is you had a PCM on the way and were going to update the post then you opted out the other expert with no update.

Did you install the PCM? If so did anything change?

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Customer reply replied 1 year ago
Will get it Friday 6/17
Customer reply replied 1 year ago
Is there another on in the dash under the audio system?
Auto Mechanic: Wayne Crawford, Shop Owner replied 1 year ago

No. There is only one PCM.

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