Stargazer77

This is My fiancee's car, and she came home from work one night fine, woke up the next morning and nothing... It is getting no spark, but turning over great. the following have been done:

Fuel Pressure checks out
ICM Replaced (new)
all 3 Coil Packs replaced (new)
ECM replaced (Used)

Still no spark. I see comments about Crank position sensor and timing chain... Are these tough to do if that is our issue? I am only a little competent in auto repair, and am pretty broke so we cannot take it in somewhere. Any ideas would be WONDERFUL!

maxwedge

Welcome to AF. If you scan the car look at cranking rpms, if none suspect wiring from the crank sensor to the icm or the cps is bad, rear of block, r/s at crank centerline.

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Stargazer77

Now, rear of block is actually on the drivers' side of the car looking from the hood back, correct?

Thanks for the welcome!

maxwedge

All descriptions of car components assume from the drivers seat, so the R/s is pass. side. Do not just replace this sensor without confirming it is bad, I have seen them stick in the block from carbon build up and break off!!

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Stargazer77

Ok, so then in that case Passenger side by the firewall?

richtazz

Did you take the e-prom from your original ECM and transfer it to the used one you bought? The ECM can be used in many different cars, it's the e-prom that is calibrated to your car. If you did swap them (and assuming the used ECM was good), it's either the crank positon sensor or the wiring between it and the ICM. The CKPS can be simple or very difficult. If the oil seal o-ring sticks in the block, it can be very difficult to get out. If not, it's a 10 minute job.

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Stargazer77

we tried both ways, old PROM and New PROM, going to go and exchange out the ECM today after work to see if it could be bad.

I saw that it is as simple as a single bolt on the sensor, but if it back along the firewall, it would be a pain to get to, no?

richtazz

It's not that hard to get to, but if it's stuck and the top breaks off, you're in trouble. Before changing the sensor, visually inspect the CKPS harness and use a digital ohm meter to check for continuity between the CKPS and the ICM. The harness that goes between the two is routed under the front of the engine and may be cut/worn through. It runs really close to the harmonic balancer and the right cv axle shaft.

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Stargazer77

Cool, will give that a go, have to find my meter... According to the component locator section of the autozone website the CKPS is: Under hood, passenger side, lower engine area, passenger side of engine block, mounted front of crankshaft pulley... Would giving the sensor a good zap with the cure-all wonder spray(WD-40) make it any easier to pull if we have to?

tblake

yes, unbolt it, twist it side to side, sray inside with penetrant, twist more, spray more, gently pull out while twisting. Kepp doing this very carerfully. If it breaks off. there is nothing you can do short of tap it IN and remove the subframe to get the oil pan off, and fish it out that way.

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2000 Pontiac Grand Prix GTP
(3.5" Pulley, DHP 1.0 PCM, ZZP 2.5" High Flow Downpipe, MMS Ported and Polished Lower Intake Manifold, ZZP Stage 1 Ported Throttle Body, 180° Thermostat, NGK Iridium TR6IX)


Check these videos out guys! (Good Stuff)
Honda Cog Commercial
Peter Griffin Fart Cover-Up

Stargazer77

GROWL! Ok, went out there last night, tried to find the sensor, was going to look from below, and the F@(*)G jack took a crap... It IS accessible from below, ja?

Stargazer77

Ok, I think I found the sensor... If I found it it is wedged up between the block and transaxle... How the frick am I supposed to get it out? any help would be GREATLY appreciated, sharing a car sucks!

maxwedge

Go to autozone.com and get to there repair info, repair guide section for details.

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Stargazer77

Tried that already and could not find much... Will try again and see, will let you all know if it helps...

Stargazer77

gives an extremely basic run down, but nothing about accessing it. If I rotate the engine, will that rotat JUST the engine, or does the transaxle rotate too?