Search found 98 matches

by RobertISaar
Wed Feb 17, 2016 8:04 pm
Forum: General Questions
Topic: Crankshaft sensor relearn?
Replies: 50
Views: 8116

Re: Crankshaft sensor relearn?

hmm..... if you had a fuel pressure gauge, I imagine you would have hooked it up by now to see what's happening in the rail. my gut says you replaced the pump/filter, the only major fuel components left are the regulator and injectors themselves. I can't see the injectors only acting dumb during a t...
by RobertISaar
Wed Feb 17, 2016 7:23 pm
Forum: General Questions
Topic: Crankshaft sensor relearn?
Replies: 50
Views: 8116

Re: Crankshaft sensor relearn?

all of that seems reasonable. cam pulse bit is acting as intended, it's something the processor keeps track of to let it know when a cam pulse occurs and then counts all 7X(3X) crank sensor pulses afterwards to keep track of which cylinders are upcoming their fuel and ignition events. TPS of .39 is ...
by RobertISaar
Tue Feb 16, 2016 7:28 pm
Forum: General Questions
Topic: Crankshaft sensor relearn?
Replies: 50
Views: 8116

Re: Crankshaft sensor relearn?

depending on how quickly it updates, you may be able to rule it as bad. when my last one went, upon the throttle getting snapped shut, closed throttle voltage would dip about .1 volts below normal for a short period of time, then the PCM would relearn that as the 0% reference point, so a half second...
by RobertISaar
Tue Feb 16, 2016 6:57 pm
Forum: General Questions
Topic: Crankshaft sensor relearn?
Replies: 50
Views: 8116

Re: Crankshaft sensor relearn?

if the TPS is failing, it can do the same, PCM doesn't see the throttle opening quickly until after it's too late to add AE fueling to correct for a rapid change in airflow.

a failing fuel pressure regulator comes to mind as well since you've changed the pump with no improvement.
by RobertISaar
Tue Feb 16, 2016 4:28 pm
Forum: Diagnostic Help
Topic: Speedo out of wack
Replies: 2
Views: 583

Re: Speedo out of wack

could be just the cluster or the PCM/speed sensor, can't tell without hooking into it and viewing the datastream(or if you have a scope, watch the 4K VSS circuit for anything odd)
by RobertISaar
Tue Feb 16, 2016 4:27 pm
Forum: General Questions
Topic: Crankshaft sensor relearn?
Replies: 50
Views: 8116

Re: Crankshaft sensor relearn?

the 94-95 3100 PCM has no CASE learn requirement/procedure. ICM was changed, nothing wrong with that. Ohm's were checked on the coils and all were in spec. Did have some water in the gas which some Heet took care of. Right now the engine runs fine, but if you stab the throttle in or out of gear it w...
by RobertISaar
Mon Jun 01, 2015 11:00 am
Forum: Diagnostic Help
Topic: Cuts off at high RPMs (Limp Mode?)
Replies: 16
Views: 1744

Re: Cuts off at high RPMs

this is using a 95 3100 beretta switch for reference, but I don't know what switch you're planning on using, they differ quite a bit depending on original application. http://i.imgur.com/tAinzeK.png with no range switch, all inputs should be detected as "low", which should set a DTC(assumi...
by RobertISaar
Wed May 20, 2015 9:27 pm
Forum: General Questions
Topic: Frame rail from a 1988 Tempest
Replies: 2
Views: 346

Re: Frame rail from a 1988 Tempest

a Tempest was a L-car, so it should be identical.
by RobertISaar
Wed May 06, 2015 12:17 pm
Forum: Off Topic
Topic: 99 Grand Prix GTP questions
Replies: 6
Views: 959

Re: 99 Grand Prix GTP questions

depending on your location, you may want to take a good look in the strut towers, usually only the rear, to make sure there isn't any hidden rust going on. it isn't nearly as bad with a 2nd gen w-body, but it still happens.

rocker panels also like to crumble apart in those same locations.
by RobertISaar
Sun Apr 12, 2015 2:26 pm
Forum: General Discussion
Topic: It's Happening! :D
Replies: 10
Views: 1000

Re: It's Happening! :D

[quote="Rettax3"]Have you checked your cross-over pipe for leaks? They are notoriously bad... There was a company that manufactured a better part that bolted in, but I couldn't even point you in a direction beyond that./quote] http://www.w-body.com/showthread.php/43001-Rebuilt-Turbo-Grand-...
by RobertISaar
Sat Apr 11, 2015 1:21 pm
Forum: Diagnostic Help
Topic: Possible bad ECM input needed.
Replies: 18
Views: 1669

Re: Possible bad ECM input needed.

heating/cooling cycles and vibration take their toll on even the best solder joints. electrolytic caps also have a finite lifespan. more often than not, those two causes are responsible for most internal ECM failures. outside of that, you can unintentionally damage them in any number of ways, but th...
by RobertISaar
Mon Dec 22, 2014 4:25 pm
Forum: Performance Mods
Topic: PROM Chip differences?
Replies: 7
Views: 1045

Re: PROM Chip differences?

Ben knows what he's doing, unlike whoever at hypertech was responsible for the calibration that was in the 85 IROC.... that one is depressing to look at. At least it came in the ECM rather than me paying for it.
by RobertISaar
Tue Aug 05, 2014 10:27 am
Forum: Performance Mods
Topic: Good .bin file for VE?
Replies: 20
Views: 1404

Re: Good .bin file for VE?

.................. there is no 1.5, not for any 3100 powered vehicle. BLM and INT can be setup to display the way OBD2 LTFT and STFT are, it's actually fairly simple at that. That would just be a change in the math with the XDF? Would make adjustments a little easier than doing the math all the tim...
by RobertISaar
Thu Jul 31, 2014 7:09 pm
Forum: Performance Mods
Topic: Good .bin file for VE?
Replies: 20
Views: 1404

Re: Good .bin file for VE?

.................. there is no 1.5, not for any 3100 powered vehicle.

BLM and INT can be setup to display the way OBD2 LTFT and STFT are, it's actually fairly simple at that.
by RobertISaar
Mon Jul 14, 2014 8:29 am
Forum: Diagnostic Help
Topic: Motor pooped!
Replies: 9
Views: 755

Re: Motor pooped!

i've heard of some late 3400 heads with the smaller rocker bolts pulling the threads out of the head, i don't know how likely that would be with 95 3100 heads though.

Go to advanced search